Merge branch 'gawk-4.1-stable'

15 files changed, 549 insertions, 424 deletions

diff --git a/ChangeLog b/ChangeLog
index a3b956c0..1dc4e10a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,19 @@
+2014-09-05         Arnold D. Robbins     <arnold@skeeve.com>
+
+	Add builtin functions to FUNCTAB for consistency.
+
+	* awk.h (Node_builtin_func): New node type.
+	(install_builtins): Declare new function.
+	* awkgram.y [DEBUG_USE]: New flag value for debug functions; they
+	don't go into FUNCTAB.
+	(install_builtins): New function.
+	* eval.c (nodetypes): Add Node_builtin_func.
+	* interpret.h (r_interpret): Rework indirect calls of built-ins
+	since they're now in the symbol table.
+	* main.c (main): Call `install_builtins'.
+	* symbol.c (install): Adjust for Node_builtin_func.
+	(load_symbols): Ditto.
+
 2014-09-04         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* profile.c (pprint): Case Op_K_for: Improve printing of
diff --git a/awk.h b/awk.h
index f62be7ae..24f96ebf 100644
--- a/awk.h
+++ b/awk.h
@@ -297,6 +297,7 @@ typedef enum nodevals {
 	Node_func,		/* lnode is param. list, rnode is body */
 	Node_ext_func,		/* extension function, code_ptr is builtin code */
 	Node_old_ext_func,	/* extension function, code_ptr is builtin code */
+	Node_builtin_func,	/* built-in function, main use is for FUNCTAB */
 
 	Node_array_ref,		/* array passed by ref as parameter */
 	Node_array_tree,	/* Hashed array tree (HAT) */
@@ -1380,6 +1381,7 @@ extern void valinfo(NODE *n, Func_print print_func, FILE *fp);
 extern void negate_num(NODE *n);
 typedef NODE *(*builtin_func_t)(int);	/* function that implements a built-in */
 extern builtin_func_t lookup_builtin(const char *name);
+extern void install_builtins(void);
 /* builtin.c */
 extern double double_to_int(double d);
 extern NODE *do_exp(int nargs);
diff --git a/awkgram.c b/awkgram.c
index 4f29ef08..34099a0b 100644
--- a/awkgram.c
+++ b/awkgram.c
@@ -4144,6 +4144,7 @@ struct token {
 #	define	GAWKX		0x0400	/* gawk extension */
 #	define	BREAK		0x0800	/* break allowed inside */
 #	define	CONTINUE	0x1000	/* continue allowed inside */
+#	define	DEBUG_USE	0x2000	/* for use by developers */
 	
 	NODE *(*ptr)(int);	/* function that implements this keyword */
 	NODE *(*ptr2)(int);	/* alternate arbitrary-precision function */
@@ -4182,7 +4183,7 @@ static const struct token tokentab[] = {
 {"END",		Op_rule,	 LEX_END,	0,		0,	0},
 {"ENDFILE",		Op_rule,	 LEX_ENDFILE,	GAWKX,		0,	0},
 #ifdef ARRAYDEBUG
-{"adump",	Op_builtin,    LEX_BUILTIN,	GAWKX|A(1)|A(2),	do_adump,	0},
+{"adump",	Op_builtin,    LEX_BUILTIN,	GAWKX|A(1)|A(2)|DEBUG_USE,	do_adump,	0},
 #endif
 {"and",		Op_builtin,    LEX_BUILTIN,	GAWKX,		do_and,	MPF(and)},
 {"asort",	Op_builtin,	 LEX_BUILTIN,	GAWKX|A(1)|A(2)|A(3),	do_asort,	0},
@@ -4242,7 +4243,7 @@ static const struct token tokentab[] = {
 {"sqrt",	Op_builtin,	 LEX_BUILTIN,	A(1),		do_sqrt,	MPF(sqrt)},
 {"srand",	Op_builtin,	 LEX_BUILTIN,	NOT_OLD|A(0)|A(1), do_srand,	MPF(srand)},
 #if defined(GAWKDEBUG) || defined(ARRAYDEBUG) /* || ... */
-{"stopme",	Op_builtin,	LEX_BUILTIN,	GAWKX|A(0),	stopme,		0},
+{"stopme",	Op_builtin,	LEX_BUILTIN,	GAWKX|A(0)|DEBUG_USE,	stopme,		0},
 #endif
 {"strftime",	Op_builtin,	 LEX_BUILTIN,	GAWKX|A(0)|A(1)|A(2)|A(3), do_strftime,	0},
 {"strtonum",	Op_builtin,    LEX_BUILTIN,	GAWKX|A(1),	do_strtonum, MPF(strtonum)},
@@ -8070,3 +8071,19 @@ lookup_builtin(const char *name)
 
 	return tokentab[mid].ptr;
 }
+
+/* install_builtins --- add built-in functions to FUNCTAB */
+
+void
+install_builtins(void)
+{
+	int i, j;
+
+	j = sizeof(tokentab) / sizeof(tokentab[0]);
+	for (i = 0; i < j; i++) {
+		if (    tokentab[i].class == LEX_BUILTIN
+		    && (tokentab[i].flags & DEBUG_USE) == 0) {
+			(void) install_symbol(tokentab[i].operator, Node_builtin_func);
+		}
+	}
+}
diff --git a/awkgram.y b/awkgram.y
index 10167b38..0f57b452 100644
--- a/awkgram.y
+++ b/awkgram.y
@@ -1805,6 +1805,7 @@ struct token {
 #	define	GAWKX		0x0400	/* gawk extension */
 #	define	BREAK		0x0800	/* break allowed inside */
 #	define	CONTINUE	0x1000	/* continue allowed inside */
+#	define	DEBUG_USE	0x2000	/* for use by developers */
 	
 	NODE *(*ptr)(int);	/* function that implements this keyword */
 	NODE *(*ptr2)(int);	/* alternate arbitrary-precision function */
@@ -1843,7 +1844,7 @@ static const struct token tokentab[] = {
 {"END",		Op_rule,	 LEX_END,	0,		0,	0},
 {"ENDFILE",		Op_rule,	 LEX_ENDFILE,	GAWKX,		0,	0},
 #ifdef ARRAYDEBUG
-{"adump",	Op_builtin,    LEX_BUILTIN,	GAWKX|A(1)|A(2),	do_adump,	0},
+{"adump",	Op_builtin,    LEX_BUILTIN,	GAWKX|A(1)|A(2)|DEBUG_USE,	do_adump,	0},
 #endif
 {"and",		Op_builtin,    LEX_BUILTIN,	GAWKX,		do_and,	MPF(and)},
 {"asort",	Op_builtin,	 LEX_BUILTIN,	GAWKX|A(1)|A(2)|A(3),	do_asort,	0},
@@ -1903,7 +1904,7 @@ static const struct token tokentab[] = {
 {"sqrt",	Op_builtin,	 LEX_BUILTIN,	A(1),		do_sqrt,	MPF(sqrt)},
 {"srand",	Op_builtin,	 LEX_BUILTIN,	NOT_OLD|A(0)|A(1), do_srand,	MPF(srand)},
 #if defined(GAWKDEBUG) || defined(ARRAYDEBUG) /* || ... */
-{"stopme",	Op_builtin,	LEX_BUILTIN,	GAWKX|A(0),	stopme,		0},
+{"stopme",	Op_builtin,	LEX_BUILTIN,	GAWKX|A(0)|DEBUG_USE,	stopme,		0},
 #endif
 {"strftime",	Op_builtin,	 LEX_BUILTIN,	GAWKX|A(0)|A(1)|A(2)|A(3), do_strftime,	0},
 {"strtonum",	Op_builtin,    LEX_BUILTIN,	GAWKX|A(1),	do_strtonum, MPF(strtonum)},
@@ -5731,3 +5732,19 @@ lookup_builtin(const char *name)
 
 	return tokentab[mid].ptr;
 }
+
+/* install_builtins --- add built-in functions to FUNCTAB */
+
+void
+install_builtins(void)
+{
+	int i, j;
+
+	j = sizeof(tokentab) / sizeof(tokentab[0]);
+	for (i = 0; i < j; i++) {
+		if (    tokentab[i].class == LEX_BUILTIN
+		    && (tokentab[i].flags & DEBUG_USE) == 0) {
+			(void) install_symbol(tokentab[i].operator, Node_builtin_func);
+		}
+	}
+}
diff --git a/doc/ChangeLog b/doc/ChangeLog
index 95327540..26e27b91 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,9 @@
+2014-09-05         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* gawktexi.in: Document builtin functions in FUNCTAB and in
+	PROCINFO["identifiers"].
+	* gawk.1: Ditto.
+
 2014-09-04         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* gawktexi.in: Document that indirect calls now work on built-in
@@ -11,8 +17,7 @@
 2014-09-02         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* gawktexi.in: Corrections to walkthrough in debugger chapter.
-	Thanks to David "bamber" Ward <dlward134@gmail.com> for
-	the problem report.
+	Thanks to David Ward <dlward134@gmail.com> for the problem report.
 
 2014-09-01         Arnold D. Robbins     <arnold@skeeve.com>
 
diff --git a/doc/gawk.1 b/doc/gawk.1
index a719cba1..a4d66720 100644
--- a/doc/gawk.1
+++ b/doc/gawk.1
@@ -1132,9 +1132,14 @@ For each identifier, the value of the element is one of the following:
 \fB"array"\fR
 The identifier is an array.
 .TP
+\fB"builtin"\fR
+The identifier is a built-in function.
+.TP
 \fB"extension"\fR
 The identifier is an extension function loaded via
-.BR @load .
+.B @load
+or
+.BR \-l .
 .TP
 \fB"scalar"\fR
 The identifier is a scalar.
diff --git a/doc/gawk.info b/doc/gawk.info
index 1d8022f0..4a283786 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -10272,7 +10272,8 @@ Options::), they are not special.
 
 `FUNCTAB #'
      An array whose indices and corresponding values are the names of
-     all the user-defined or extension functions in the program.
+     all the built-in, user-defined and extension functions in the
+     program.
 
           NOTE: Attempting to use the `delete' statement with the
           `FUNCTAB' array causes a fatal error.  Any attempt to assign
@@ -10308,9 +10309,12 @@ Options::), they are not special.
          `"array"'
                The identifier is an array.
 
+         `"builtin"'
+               The identifier is a built-in function.
+
          `"extension"'
                The identifier is an extension function loaded via
-               `@load'.
+               `@load' or `-l'.
 
          `"scalar"'
                The identifier is a scalar.
@@ -31880,7 +31884,7 @@ Index
                                                               (line  46)
 * dark corner, FILENAME variable <1>:    Auto-set.            (line  98)
 * dark corner, FILENAME variable:        Getline Notes.       (line  19)
-* dark corner, FNR/NR variables:         Auto-set.            (line 309)
+* dark corner, FNR/NR variables:         Auto-set.            (line 313)
 * dark corner, format-control characters: Control Letters.    (line  18)
 * dark corner, FS as null string:        Single Character Fields.
                                                               (line  20)
@@ -32094,7 +32098,7 @@ Index
                                                               (line 260)
 * differences in awk and gawk, print/printf statements: Format Modifiers.
                                                               (line  13)
-* differences in awk and gawk, PROCINFO array: Auto-set.      (line 136)
+* differences in awk and gawk, PROCINFO array: Auto-set.      (line 137)
 * differences in awk and gawk, read timeouts: Read Timeout.   (line   6)
 * differences in awk and gawk, record separators: awk split records.
                                                               (line 124)
@@ -32104,7 +32108,7 @@ Index
                                                               (line  26)
 * differences in awk and gawk, RS/RT variables: gawk split records.
                                                               (line  58)
-* differences in awk and gawk, RT variable: Auto-set.         (line 265)
+* differences in awk and gawk, RT variable: Auto-set.         (line 269)
 * differences in awk and gawk, single-character fields: Single Character Fields.
                                                               (line   6)
 * differences in awk and gawk, split() function: String Functions.
@@ -32112,7 +32116,7 @@ Index
 * differences in awk and gawk, strings:  Scalar Constants.    (line  20)
 * differences in awk and gawk, strings, storing: gawk split records.
                                                               (line  77)
-* differences in awk and gawk, SYMTAB variable: Auto-set.     (line 269)
+* differences in awk and gawk, SYMTAB variable: Auto-set.     (line 273)
 * differences in awk and gawk, TEXTDOMAIN variable: User-modified.
                                                               (line 152)
 * differences in awk and gawk, trunc-mod operation: Arithmetic Ops.
@@ -32152,8 +32156,8 @@ Index
 * dynamically loaded extensions:         Dynamic Extensions.  (line   6)
 * e debugger command (alias for enable): Breakpoint Control.  (line  73)
 * EBCDIC:                                Ordinal Functions.   (line  45)
-* effective group ID of gawk user:       Auto-set.            (line 141)
-* effective user ID of gawk user:        Auto-set.            (line 145)
+* effective group ID of gawk user:       Auto-set.            (line 142)
+* effective user ID of gawk user:        Auto-set.            (line 146)
 * egrep utility <1>:                     Egrep Program.       (line   6)
 * egrep utility:                         Bracket Expressions. (line  26)
 * egrep.awk program:                     Egrep Program.       (line  54)
@@ -32268,7 +32272,7 @@ Index
                                                               (line   6)
 * extension API version:                 Extension Versioning.
                                                               (line   6)
-* extension API, version number:         Auto-set.            (line 232)
+* extension API, version number:         Auto-set.            (line 236)
 * extension example:                     Extension Example.   (line   6)
 * extension registration:                Registration Functions.
                                                               (line   6)
@@ -32420,7 +32424,7 @@ Index
                                                               (line  12)
 * FNR variable <1>:                      Auto-set.            (line 107)
 * FNR variable:                          Records.             (line   6)
-* FNR variable, changing:                Auto-set.            (line 309)
+* FNR variable, changing:                Auto-set.            (line 313)
 * for statement:                         For Statement.       (line   6)
 * for statement, looping over arrays:    Scanning an Array.   (line  20)
 * fork() extension function:             Extension Sample Fork.
@@ -32521,7 +32525,7 @@ Index
 * G-d:                                   Acknowledgments.     (line  92)
 * Garfinkle, Scott:                      Contributors.        (line  34)
 * gawk program, dynamic profiling:       Profiling.           (line 179)
-* gawk version:                          Auto-set.            (line 207)
+* gawk version:                          Auto-set.            (line 211)
 * gawk, ARGIND variable in:              Other Arguments.     (line  12)
 * gawk, awk and <1>:                     This Manual.         (line  14)
 * gawk, awk and:                         Preface.             (line  21)
@@ -32590,7 +32594,7 @@ Index
 * gawk, OS/2 version of:                 PC Using.            (line  16)
 * gawk, PROCINFO array in <1>:           Two-way I/O.         (line  99)
 * gawk, PROCINFO array in <2>:           Time Functions.      (line  47)
-* gawk, PROCINFO array in:               Auto-set.            (line 136)
+* gawk, PROCINFO array in:               Auto-set.            (line 137)
 * gawk, regexp constants and:            Using Constant Regexps.
                                                               (line  28)
 * gawk, regular expressions, case sensitivity: Case-sensitivity.
@@ -32598,14 +32602,14 @@ Index
 * gawk, regular expressions, operators:  GNU Regexp Operators.
                                                               (line   6)
 * gawk, regular expressions, precedence: Regexp Operators.    (line 161)
-* gawk, RT variable in <1>:              Auto-set.            (line 265)
+* gawk, RT variable in <1>:              Auto-set.            (line 269)
 * gawk, RT variable in <2>:              Multiple Line.       (line 129)
 * gawk, RT variable in:                  awk split records.   (line 124)
 * gawk, See Also awk:                    Preface.             (line  34)
 * gawk, source code, obtaining:          Getting.             (line   6)
 * gawk, splitting fields and:            Constant Size.       (line  88)
 * gawk, string-translation functions:    I18N Functions.      (line   6)
-* gawk, SYMTAB array in:                 Auto-set.            (line 269)
+* gawk, SYMTAB array in:                 Auto-set.            (line 273)
 * gawk, TEXTDOMAIN variable in:          User-modified.       (line 152)
 * gawk, timestamps:                      Time Functions.      (line   6)
 * gawk, uses for:                        Preface.             (line  34)
@@ -32691,7 +32695,7 @@ Index
 * Grigera, Juan:                         Contributors.        (line  57)
 * group database, reading:               Group Functions.     (line   6)
 * group file:                            Group Functions.     (line   6)
-* group ID of gawk user:                 Auto-set.            (line 180)
+* group ID of gawk user:                 Auto-set.            (line 184)
 * groups, information about:             Group Functions.     (line   6)
 * gsub <1>:                              String Functions.    (line 139)
 * gsub:                                  Using Constant Regexps.
@@ -32985,7 +32989,7 @@ Index
 * mawk utility <3>:                      Concatenation.       (line  36)
 * mawk utility <4>:                      Getline/Pipe.        (line  62)
 * mawk utility:                          Escape Sequences.    (line 132)
-* maximum precision supported by MPFR library: Auto-set.      (line 221)
+* maximum precision supported by MPFR library: Auto-set.      (line 225)
 * McIlroy, Doug:                         Glossary.            (line 149)
 * McPhee, Patrick:                       Contributors.        (line 100)
 * message object files:                  Explaining gettext.  (line  42)
@@ -32998,7 +33002,7 @@ Index
 * messages from extensions:              Printing Messages.   (line   6)
 * metacharacters in regular expressions: Regexp Operators.    (line   6)
 * metacharacters, escape sequences for:  Escape Sequences.    (line 138)
-* minimum precision supported by MPFR library: Auto-set.      (line 224)
+* minimum precision supported by MPFR library: Auto-set.      (line 228)
 * mktime:                                Time Functions.      (line  25)
 * modifiers, in format specifiers:       Format Modifiers.    (line   6)
 * monetary information, localization:    Explaining gettext.  (line 104)
@@ -33058,9 +33062,9 @@ Index
 * non-existent array elements:           Reference to Elements.
                                                               (line  23)
 * not Boolean-logic operator:            Boolean Ops.         (line   6)
-* NR variable <1>:                       Auto-set.            (line 131)
+* NR variable <1>:                       Auto-set.            (line 132)
 * NR variable:                           Records.             (line   6)
-* NR variable, changing:                 Auto-set.            (line 309)
+* NR variable, changing:                 Auto-set.            (line 313)
 * null strings <1>:                      Basic Data Typing.   (line  26)
 * null strings <2>:                      Truth Values.        (line   6)
 * null strings <3>:                      Regexp Field Splitting.
@@ -33174,7 +33178,7 @@ Index
 * p debugger command (alias for print):  Viewing And Changing Data.
                                                               (line  36)
 * Papadopoulos, Panos:                   Contributors.        (line 128)
-* parent process ID of gawk process:     Auto-set.            (line 189)
+* parent process ID of gawk process:     Auto-set.            (line 193)
 * parentheses (), in a profile:          Profiling.           (line 146)
 * parentheses (), regexp operator:       Regexp Operators.    (line  81)
 * password file:                         Passwd Functions.    (line  16)
@@ -33337,24 +33341,24 @@ Index
 * printing, unduplicated lines of text:  Uniq Program.        (line   6)
 * printing, user information:            Id Program.          (line   6)
 * private variables:                     Library Names.       (line  11)
-* process group idIDof gawk process:     Auto-set.            (line 183)
-* process ID of gawk process:            Auto-set.            (line 186)
+* process group idIDof gawk process:     Auto-set.            (line 187)
+* process ID of gawk process:            Auto-set.            (line 190)
 * processes, two-way communications with: Two-way I/O.        (line   6)
 * processing data:                       Basic High Level.    (line   6)
 * PROCINFO array <1>:                    Passwd Functions.    (line   6)
 * PROCINFO array <2>:                    Time Functions.      (line  47)
-* PROCINFO array:                        Auto-set.            (line 136)
+* PROCINFO array:                        Auto-set.            (line 137)
 * PROCINFO array, and communications via ptys: Two-way I/O.   (line  99)
 * PROCINFO array, and group membership:  Group Functions.     (line   6)
 * PROCINFO array, and user and group ID numbers: Id Program.  (line  15)
 * PROCINFO array, testing the field splitting: Passwd Functions.
                                                               (line 161)
-* PROCINFO array, uses:                  Auto-set.            (line 242)
+* PROCINFO array, uses:                  Auto-set.            (line 246)
 * PROCINFO, values of sorted_in:         Controlling Scanning.
                                                               (line  26)
 * profiling awk programs:                Profiling.           (line   6)
 * profiling awk programs, dynamically:   Profiling.           (line 179)
-* program identifiers:                   Auto-set.            (line 154)
+* program identifiers:                   Auto-set.            (line 155)
 * program, definition of:                Getting Started.     (line  21)
 * programming conventions, --non-decimal-data option: Nondecimal Data.
                                                               (line  36)
@@ -33513,7 +33517,7 @@ Index
 * right shift:                           Bitwise Functions.   (line  52)
 * right shift, bitwise:                  Bitwise Functions.   (line  32)
 * Ritchie, Dennis:                       Basic Data Typing.   (line  54)
-* RLENGTH variable:                      Auto-set.            (line 252)
+* RLENGTH variable:                      Auto-set.            (line 256)
 * RLENGTH variable, match() function and: String Functions.   (line 224)
 * Robbins, Arnold <1>:                   Future Extensions.   (line   6)
 * Robbins, Arnold <2>:                   Bugs.                (line  32)
@@ -33539,9 +33543,9 @@ Index
 * RS variable:                           awk split records.   (line  12)
 * RS variable, multiline records and:    Multiple Line.       (line  17)
 * rshift:                                Bitwise Functions.   (line  52)
-* RSTART variable:                       Auto-set.            (line 258)
+* RSTART variable:                       Auto-set.            (line 262)
 * RSTART variable, match() function and: String Functions.    (line 224)
-* RT variable <1>:                       Auto-set.            (line 265)
+* RT variable <1>:                       Auto-set.            (line 269)
 * RT variable <2>:                       Multiple Line.       (line 129)
 * RT variable:                           awk split records.   (line 124)
 * Rubin, Paul <1>:                       Contributors.        (line  15)
@@ -33561,7 +33565,7 @@ Index
 * scanning arrays:                       Scanning an Array.   (line   6)
 * scanning multidimensional arrays:      Multiscanning.       (line  11)
 * Schorr, Andrew <1>:                    Contributors.        (line 133)
-* Schorr, Andrew <2>:                    Auto-set.            (line 292)
+* Schorr, Andrew <2>:                    Auto-set.            (line 296)
 * Schorr, Andrew:                        Acknowledgments.     (line  60)
 * Schreiber, Bert:                       Acknowledgments.     (line  38)
 * Schreiber, Rita:                       Acknowledgments.     (line  38)
@@ -33645,7 +33649,7 @@ Index
                                                               (line 118)
 * sidebar, Changing FS Does Not Affect the Fields: Field Splitting Summary.
                                                               (line  38)
-* sidebar, Changing NR and FNR:          Auto-set.            (line 307)
+* sidebar, Changing NR and FNR:          Auto-set.            (line 311)
 * sidebar, Controlling Output Buffering with system(): I/O Functions.
                                                               (line 138)
 * sidebar, Escape Sequences for Metacharacters: Escape Sequences.
@@ -33808,9 +33812,9 @@ Index
 * substr:                                String Functions.    (line 479)
 * substring:                             String Functions.    (line 479)
 * Sumner, Andrew:                        Other Versions.      (line  64)
-* supplementary groups of gawk process:  Auto-set.            (line 237)
+* supplementary groups of gawk process:  Auto-set.            (line 241)
 * switch statement:                      Switch Statement.    (line   6)
-* SYMTAB array:                          Auto-set.            (line 269)
+* SYMTAB array:                          Auto-set.            (line 273)
 * syntactic ambiguity: /= operator vs. /=.../ regexp constant: Assignment Ops.
                                                               (line 148)
 * system:                                I/O Functions.       (line  75)
@@ -33988,10 +33992,10 @@ Index
 * variables, uninitialized, as array subscripts: Uninitialized Subscripts.
                                                               (line   6)
 * variables, user-defined:               Variables.           (line   6)
-* version of gawk:                       Auto-set.            (line 207)
-* version of gawk extension API:         Auto-set.            (line 232)
-* version of GNU MP library:             Auto-set.            (line 218)
-* version of GNU MPFR library:           Auto-set.            (line 214)
+* version of gawk:                       Auto-set.            (line 211)
+* version of gawk extension API:         Auto-set.            (line 236)
+* version of GNU MP library:             Auto-set.            (line 222)
+* version of GNU MPFR library:           Auto-set.            (line 218)
 * vertical bar (|):                      Regexp Operators.    (line  70)
 * vertical bar (|), | operator (I/O) <1>: Precedence.         (line  65)
 * vertical bar (|), | operator (I/O):    Getline/Pipe.        (line   9)
@@ -34276,355 +34280,355 @@ Node: Built-in Variables426246
 Node: User-modified427373
 Ref: User-modified-Footnote-1435062
 Node: Auto-set435124
-Ref: Auto-set-Footnote-1448043
-Ref: Auto-set-Footnote-2448248
-Node: ARGC and ARGV448304
-Node: Pattern Action Summary452208
-Node: Arrays454431
-Node: Array Basics455980
-Node: Array Intro456806
-Ref: figure-array-elements458779
-Ref: Array Intro-Footnote-1461303
-Node: Reference to Elements461431
-Node: Assigning Elements463881
-Node: Array Example464372
-Node: Scanning an Array466104
-Node: Controlling Scanning469105
-Ref: Controlling Scanning-Footnote-1474278
-Node: Delete474594
-Ref: Delete-Footnote-1477345
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+Node: Copying1199618
+Node: GNU Free Documentation License1237174
+Node: Index1262310
 
 End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index 7fc342c3..95747864 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -14726,7 +14726,7 @@ current record. @xref{Changing Fields}.
 @cindex differences in @command{awk} and @command{gawk}, @code{FUNCTAB} variable
 @item @code{FUNCTAB #}
 An array whose indices and corresponding values are the names of all
-the user-defined or extension functions in the program.
+the built-in, user-defined and extension functions in the program.
 
 @quotation NOTE
 Attempting to use the @code{delete} statement with the @code{FUNCTAB}
@@ -14774,9 +14774,12 @@ text of the AWK program.  For each identifier, the value of the element is one o
 @item "array"
 The identifier is an array.
 
+@item "builtin"
+The identifier is a built-in function.
+
 @item "extension"
 The identifier is an extension function loaded via
-@code{@@load}.
+@code{@@load} or @option{-l}.
 
 @item "scalar"
 The identifier is a scalar.
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 9bef7907..2c1bee3e 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -14060,7 +14060,7 @@ current record. @xref{Changing Fields}.
 @cindex differences in @command{awk} and @command{gawk}, @code{FUNCTAB} variable
 @item @code{FUNCTAB #}
 An array whose indices and corresponding values are the names of all
-the user-defined or extension functions in the program.
+the built-in, user-defined and extension functions in the program.
 
 @quotation NOTE
 Attempting to use the @code{delete} statement with the @code{FUNCTAB}
@@ -14108,9 +14108,12 @@ text of the AWK program.  For each identifier, the value of the element is one o
 @item "array"
 The identifier is an array.
 
+@item "builtin"
+The identifier is a built-in function.
+
 @item "extension"
 The identifier is an extension function loaded via
-@code{@@load}.
+@code{@@load} or @option{-l}.
 
 @item "scalar"
 The identifier is a scalar.
diff --git a/eval.c b/eval.c
index 16a928d0..5649797f 100644
--- a/eval.c
+++ b/eval.c
@@ -241,6 +241,7 @@ static const char *const nodetypes[] = {
 	"Node_func",
 	"Node_ext_func",
 	"Node_old_ext_func",
+	"Node_builtin_func",
 	"Node_array_ref",
 	"Node_array_tree",
 	"Node_array_leaf",
diff --git a/interpret.h b/interpret.h
index fee8136e..28804330 100644
--- a/interpret.h
+++ b/interpret.h
@@ -1039,12 +1039,13 @@ match_re:
 			}
 
 			if (f == NULL) {
+				fatal(_("`%s' is not a function, so it cannot be called indirectly"),
+						t1->stptr);
+			} else if (f->type == Node_builtin_func) {
 				int arg_count = (pc + 1)->expr_count;
 				builtin_func_t the_func = lookup_builtin(t1->stptr);
 				
-				if (the_func == NULL)
-					fatal(_("`%s' is not a user-defined function, so it cannot be called indirectly"),
-						t1->stptr);
+				assert(the_func != NULL);
 
 				/* call it */
 				r = the_func(arg_count);
diff --git a/main.c b/main.c
index fc87d605..291fa897 100644
--- a/main.c
+++ b/main.c
@@ -694,6 +694,8 @@ out:
 	if (do_intl)
 		exit(EXIT_SUCCESS);
 
+	install_builtins();
+
 	if (do_lint)
 		shadow_funcs();
 
diff --git a/symbol.c b/symbol.c
index efb48c95..5add8968 100644
--- a/symbol.c
+++ b/symbol.c
@@ -307,7 +307,9 @@ install(char *name, NODE *parm, NODETYPE type)
 
 	if (type == Node_param_list) {
 		table = param_table;
-	} else if (type == Node_func || type == Node_ext_func) {
+	} else if (   type == Node_func
+		   || type == Node_ext_func
+		   || type == Node_builtin_func) {
 		table = func_table;
 	} else if (installing_specials) {
 		table = global_table;
@@ -320,7 +322,7 @@ install(char *name, NODE *parm, NODETYPE type)
 		r = make_symbol(name, type);
 		if (type == Node_func)
 			func_count++;
-		if (type != Node_ext_func && table != global_table)
+		if (type != Node_ext_func && type != Node_builtin_func && table != global_table)
 			var_count++;	/* total, includes Node_func */
 	}
 
@@ -393,7 +395,7 @@ get_symbols(SYMBOL_TYPE what, bool sort)
 
 		for (i = count = 0; i < max; i += 2) {
 			r = list[i+1];
-			if (r->type == Node_ext_func)
+			if (r->type == Node_ext_func || r->type == Node_builtin_func)
 				continue;
 			assert(r->type == Node_func);
 			table[count++] = r;
@@ -539,7 +541,7 @@ load_symbols()
 	NODE *sym_array;
 	NODE **aptr;
 	long i, j, max;
-	NODE *user, *extension, *untyped, *scalar, *array;
+	NODE *user, *extension, *untyped, *scalar, *array, *built_in;
 	NODE **list;
 	NODE *tables[4];
 
@@ -570,6 +572,7 @@ load_symbols()
 	scalar = make_string("scalar", 6);
 	untyped = make_string("untyped", 7);
 	array = make_string("array", 5);
+	built_in = make_string("builtin", 7);
 
 	for (i = 0; tables[i] != NULL; i++) {
 		list = assoc_list(tables[i], "@unsorted", ASORTI);
@@ -580,6 +583,7 @@ load_symbols()
 			r = list[j+1];
 			if (   r->type == Node_ext_func
 			    || r->type == Node_func
+			    || r->type == Node_builtin_func
 			    || r->type == Node_var
 			    || r->type == Node_var_array
 			    || r->type == Node_var_new) {
@@ -594,6 +598,9 @@ load_symbols()
 				case Node_func:
 					*aptr = dupnode(user);
 					break;
+				case Node_builtin_func:
+					*aptr = dupnode(built_in);
+					break;
 				case Node_var:
 					*aptr = dupnode(scalar);
 					break;
diff --git a/test/ChangeLog b/test/ChangeLog
index 96bd37e9..68cc18e6 100644
--- a/test/ChangeLog
+++ b/test/ChangeLog
@@ -7,6 +7,7 @@
 	Sort of related:
 
 	* indirectcall2.awk, indirectcall2.ok: New files.
+	* id.ok: Updated.
 
 2014-09-04         Arnold D. Robbins     <arnold@skeeve.com>
 
diff --git a/test/id.ok b/test/id.ok
index d31573de..4cb39b32 100644
--- a/test/id.ok
+++ b/test/id.ok
@@ -1,32 +1,73 @@
-FUNCTAB -> array
-ARGV -> array
-SYMTAB -> array
-ORS -> scalar
-ROUNDMODE -> scalar
-i -> untyped
 OFS -> scalar
+rand -> builtin
+ARGC -> scalar
+dcgettext -> builtin
+gsub -> builtin
+PREC -> scalar
+match -> builtin
+ARGIND -> scalar
+int -> builtin
 ERRNO -> scalar
+ARGV -> array
+log -> builtin
+sprintf -> builtin
+ROUNDMODE -> scalar
+strftime -> builtin
+systime -> builtin
+and -> builtin
+srand -> builtin
 FNR -> scalar
+asort -> builtin
+atan2 -> builtin
+cos -> builtin
+TEXTDOMAIN -> scalar
+ORS -> scalar
+split -> builtin
+div -> builtin
+RSTART -> scalar
+compl -> builtin
+bindtextdomain -> builtin
+exp -> builtin
+or -> builtin
+fflush -> builtin
+gensub -> builtin
 LINT -> scalar
+dcngettext -> builtin
+index -> builtin
 IGNORECASE -> scalar
-NR -> scalar
-function1 -> user
-ARGIND -> scalar
-NF -> scalar
-TEXTDOMAIN -> scalar
+system -> builtin
 CONVFMT -> scalar
+sqrt -> builtin
+rshift -> builtin
+tolower -> builtin
+FS -> scalar
+BINMODE -> scalar
+sin -> builtin
+asorti -> builtin
 FIELDWIDTHS -> scalar
-ARGC -> scalar
+function1 -> user
+FILENAME -> scalar
+close -> builtin
+mktime -> builtin
+FUNCTAB -> array
+NF -> scalar
+isarray -> builtin
 an_array -> untyped
-PROCINFO -> array
-PREC -> scalar
+patsplit -> builtin
+NR -> scalar
 SUBSEP -> scalar
-FPAT -> scalar
-RS -> scalar
-FS -> scalar
+extension -> builtin
+i -> untyped
+sub -> builtin
 OFMT -> scalar
 RLENGTH -> scalar
+substr -> builtin
+FPAT -> scalar
+RS -> scalar
+xor -> builtin
 RT -> scalar
-BINMODE -> scalar
-FILENAME -> scalar
-RSTART -> scalar
+PROCINFO -> array
+lshift -> builtin
+SYMTAB -> array
+strtonum -> builtin
+toupper -> builtin