./ChangeLog:

1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
	* configure (skip-this-dir): Add handling for new shell script, which
	might be created by a sub-directory's configure to indicate, this particular
	directory is "unwanted".
	* Makefile.in ($(CONFIGURE_TARGET_MODULES)): Likewise.
./gcc/ChangeLog:
1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
	* Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
	which can be configured.
	(LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
	(Makefile): Pass actual LANGUAGES through the environment when
	re-configuring.
	(cstamp-h): Likewise.
	(config.status): Likewise.
	* configure.in (enable_languages): Add new configuration parameter
	"--enable-languages=lang1,lang2,...".
	(${srcdir}/*/config-lang.in): Change handling to configure only
	those directories, that the user might have enabled; default to
	"all" existing languages.
	* configure: Regenerate.
./libchill/ChangeLog:
1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
	* configure.in (compiler_name): Add check to detect if this
	language's compiler has been built.
	* configure: Regenerate.
./libf2c/ChangeLog:
1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
	* configure.in (compiler_name): Add check to detect if this
	language's compiler has been built.
	* configure: Regenerate.
./libio/ChangeLog:
1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
	* configure.in (compiler_name): Add check to detect if this
	language's compiler has been built.
./libobjc/ChangeLog:
1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
	* configure.in (compiler_name): Add check to detect if this
	language's compiler has been built.
	* configure: Regenerate.
./libstdc++/ChangeLog:
1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
	* configure.in (compiler_name): Add check to detect if this
	language's compiler has been built.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@23892 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 94 insertions, 33 deletions

diff --git a/libf2c/ChangeLog b/libf2c/ChangeLog
index 58cf351eac7..7b49ce5963c 100644
--- a/libf2c/ChangeLog
+++ b/libf2c/ChangeLog
@@ -1,3 +1,9 @@
+1998-11-26  Manfred Hollstein  <manfred@s-direktnet.de>
+
+	* configure.in (compiler_name): Add check to detect if this
+	language's compiler has been built.
+	* configure: Regenerate.
+
 Mon Nov 23 16:52:22 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	*  configure.in: Use AC_PREREQ(2.12.1).
diff --git a/libf2c/configure b/libf2c/configure
index 2423f754e96..1110730cdd0 100755
--- a/libf2c/configure
+++ b/libf2c/configure
@@ -549,12 +549,42 @@ ac_config_sub=$ac_aux_dir/config.sub
 ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
 
 
+# If the language specific compiler does not exist, but the "gcc" directory does,
+# we do not build anything. Note, $r is set by the top-level Makefile.
+compiler_name=f771
+rm -f skip-this-dir
+echo $ac_n "checking if compiler $compiler_name has been built""... $ac_c" 1>&6
+echo "configure:558: checking if compiler $compiler_name has been built" >&5
+if eval "test \"`echo '$''{'f77_cv_compiler_exists'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  f77_cv_compiler_exists=yes
+	if test -n "$r"; then
+		if test -d "$r"/gcc; then
+			if test -f "$r"/gcc/$compiler_name; then
+				true
+			else
+				f77_cv_compiler_exists=no
+				echo "rm -f config.cache config.log multilib.out" > skip-this-dir
+			fi
+		fi
+	fi
+	
+fi
+
+echo "$ac_t""$f77_cv_compiler_exists" 1>&6
+if test x$f77_cv_compiler_exists = xno
+then
+	rm -f Makefile conftest* confdefs* core
+	exit 0
+fi
+
 # For g77 we'll set CC to point at the built gcc, but this will get it into
 # the makefiles
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:558: checking for $ac_word" >&5
+echo "configure:588: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -583,7 +613,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:587: checking for $ac_word" >&5
+echo "configure:617: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -631,7 +661,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:635: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:665: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -641,11 +671,11 @@ ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS
 cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 645 "configure"
+#line 675 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-if { (eval echo configure:649: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:679: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -665,12 +695,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:669: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:699: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:674: checking whether we are using GNU C" >&5
+echo "configure:704: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -679,7 +709,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:683: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:713: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -694,7 +724,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:698: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:728: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -730,7 +760,7 @@ else
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:734: checking for $ac_word" >&5
+echo "configure:764: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -769,7 +799,7 @@ fi
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:773: checking for a BSD compatible install" >&5
+echo "configure:803: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -820,7 +850,7 @@ test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:824: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:854: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -849,7 +879,7 @@ fi
 
 # Sanity check for the cross-compilation case:
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:853: checking how to run the C preprocessor" >&5
+echo "configure:883: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -864,13 +894,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 868 "configure"
+#line 898 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:874: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:904: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
@@ -881,13 +911,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 885 "configure"
+#line 915 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:891: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:921: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
@@ -911,17 +941,17 @@ echo "$ac_t""$CPP" 1>&6
 
 ac_safe=`echo "stdio.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for stdio.h""... $ac_c" 1>&6
-echo "configure:915: checking for stdio.h" >&5
+echo "configure:945: checking for stdio.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 920 "configure"
+#line 950 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:925: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:955: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -952,7 +982,7 @@ fi
 # (via com.h).  proj.h and com.h are in gcc/f/, config.h which they need
 # is in gcc/ and the config files are in gcc/config/.
 echo $ac_n "checking f2c integer type""... $ac_c" 1>&6
-echo "configure:956: checking f2c integer type" >&5
+echo "configure:986: checking f2c integer type" >&5
 late_ac_cpp=$ac_cpp
 ac_cpp="$late_ac_cpp -I../../gcc/f -I../../gcc -I../../gcc/config"
 if test "$srcdir" != . ; then
@@ -961,9 +991,9 @@ fi
 if eval "test \"`echo '$''{'g77_cv_sys_f2cinteger'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
-  echo "configure:965: using $ac_cpp" >&5
+  echo "configure:995: using $ac_cpp" >&5
 cat > conftest.$ac_ext <<EOF
-#line 967 "configure"
+#line 997 "configure"
 #include "confdefs.h"
 #include "proj.h"
 #define FFECOM_DETERMINE_TYPES 1
@@ -985,9 +1015,9 @@ fi
 rm -f conftest*
 
 if test "$g77_cv_sys_f2cinteger" = ""; then
-echo "configure:989: using $ac_cpp" >&5
+echo "configure:1019: using $ac_cpp" >&5
   cat > conftest.$ac_ext <<EOF
-#line 991 "configure"
+#line 1021 "configure"
 #include "confdefs.h"
 #include "proj.h"
 #define FFECOM_DETERMINE_TYPES 1
@@ -1022,7 +1052,7 @@ ac_cpp=$late_ac_cpp
 
 
 echo $ac_n "checking f2c long int type""... $ac_c" 1>&6
-echo "configure:1026: checking f2c long int type" >&5
+echo "configure:1056: checking f2c long int type" >&5
 late_ac_cpp=$ac_cpp
 ac_cpp="$late_ac_cpp -I../../gcc/f -I../../gcc -I../../gcc/config"
 if test "$srcdir" != . ; then
@@ -1031,9 +1061,9 @@ fi
 if eval "test \"`echo '$''{'g77_cv_sys_f2clongint'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
-  echo "configure:1035: using $ac_cpp" >&5
+  echo "configure:1065: using $ac_cpp" >&5
 cat > conftest.$ac_ext <<EOF
-#line 1037 "configure"
+#line 1067 "configure"
 #include "confdefs.h"
 #include "proj.h"
 #define FFECOM_DETERMINE_TYPES 1
@@ -1055,9 +1085,9 @@ fi
 rm -f conftest*
 
 if test "$g77_cv_sys_f2clongint" = ""; then
-echo "configure:1059: using $ac_cpp" >&5
+echo "configure:1089: using $ac_cpp" >&5
   cat > conftest.$ac_ext <<EOF
-#line 1061 "configure"
+#line 1091 "configure"
 #include "confdefs.h"
 #include "proj.h"
 #define FFECOM_DETERMINE_TYPES 1
@@ -1136,7 +1166,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:1140: checking host system type" >&5
+echo "configure:1170: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -1157,7 +1187,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:1161: checking target system type" >&5
+echo "configure:1191: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -1175,7 +1205,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:1179: checking build system type" >&5
+echo "configure:1209: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
diff --git a/libf2c/configure.in b/libf2c/configure.in
index 1362431bbca..1e4a2ad70a7 100644
--- a/libf2c/configure.in
+++ b/libf2c/configure.in
@@ -35,6 +35,31 @@ dnl This is needed for a multilibbed build in the source tree so
 dnl that install-sh and config.sub get found.
 AC_CONFIG_AUX_DIR($topsrcdir)
 
+# If the language specific compiler does not exist, but the "gcc" directory does,
+# we do not build anything. Note, $r is set by the top-level Makefile.
+compiler_name=f771
+rm -f skip-this-dir
+AC_MSG_CHECKING(if compiler $compiler_name has been built)
+AC_CACHE_VAL(f77_cv_compiler_exists,
+	[f77_cv_compiler_exists=yes
+	if test -n "$r"; then
+		if test -d "$r"/gcc; then
+			if test -f "$r"/gcc/$compiler_name; then
+				true
+			else
+				f77_cv_compiler_exists=no
+				echo "rm -f config.cache config.log multilib.out" > skip-this-dir
+			fi
+		fi
+	fi
+	])
+AC_MSG_RESULT($f77_cv_compiler_exists)
+if test x$f77_cv_compiler_exists = xno
+then
+	rm -f Makefile conftest* confdefs* core
+	exit 0
+fi
+
 dnl Checks for programs.
 # For g77 we'll set CC to point at the built gcc, but this will get it into
 # the makefiles