PR bootstrap/67363

	* configure.ac: Check if setenv and unsetenv are declared.
	* configure: Rebuild.
	* config.in: Rebuild.
	* system.h: Declare setenv and unsetenv if not declared.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227666 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 32 insertions, 2 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7f15326d40a..44e84a4a5f1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2015-09-15  John David Anglin  <danglin@gcc.gnu.org>
+
+	PR bootstrap/67363
+	* configure.ac: Check if setenv and unsetenv are declared.
+	* configure: Rebuild.
+	* config.in: Rebuild.
+	* system.h: Declare setenv and unsetenv if not declared.
+
 2015-09-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
 	* config/rs6000/rs6000.c (swap_web_entry): Update preceding
diff --git a/gcc/config.in b/gcc/config.in
index 98c46478a14..431d26218d1 100644
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -934,6 +934,13 @@
 #endif
 
 
+/* Define to 1 if we found a declaration for 'setenv', otherwise define to 0.
+   */
+#ifndef USED_FOR_TARGET
+#undef HAVE_DECL_SETENV
+#endif
+
+
 /* Define to 1 if we found a declaration for 'setrlimit', otherwise define to
    0. */
 #ifndef USED_FOR_TARGET
@@ -1025,6 +1032,13 @@
 #endif
 
 
+/* Define to 1 if we found a declaration for 'unsetenv', otherwise define to
+   0. */
+#ifndef USED_FOR_TARGET
+#undef HAVE_DECL_UNSETENV
+#endif
+
+
 /* Define to 1 if we found a declaration for 'vasprintf', otherwise define to
    0. */
 #ifndef USED_FOR_TARGET
diff --git a/gcc/configure b/gcc/configure
index 07d39f94393..846c996342f 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -10926,7 +10926,7 @@ _ACEOF
 
 for ac_func in getenv atol atoll asprintf sbrk abort atof getcwd getwd \
 	madvise stpcpy strnlen strsignal strverscmp \
-	strtol strtoul strtoll strtoull \
+	strtol strtoul strtoll strtoull setenv unsetenv \
 	errno snprintf vsnprintf vasprintf malloc realloc calloc \
 	free getopt clock getpagesize ffs clearerr_unlocked feof_unlocked   ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked   fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked   putchar_unlocked putc_unlocked
 do
diff --git a/gcc/configure.ac b/gcc/configure.ac
index b6e8bed843f..34c43d54228 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1247,7 +1247,7 @@ AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[
 
 gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \
 	madvise stpcpy strnlen strsignal strverscmp \
-	strtol strtoul strtoll strtoull \
+	strtol strtoul strtoll strtoull setenv unsetenv \
 	errno snprintf vsnprintf vasprintf malloc realloc calloc \
 	free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[
 #include "ansidecl.h"
diff --git a/gcc/system.h b/gcc/system.h
index 78ad60904dc..1cc5d408df0 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -465,6 +465,10 @@ extern char *getwd (char *);
 extern void *sbrk (int);
 #endif
 
+#if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV
+int setenv(const char *, const char *, int);
+#endif
+
 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
 extern char *strstr (const char *, const char *);
 #endif
@@ -473,6 +477,10 @@ extern char *strstr (const char *, const char *);
 extern char *stpcpy (char *, const char *);
 #endif
 
+#if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV
+int unsetenv(const char *);
+#endif
+
 #ifdef __cplusplus
 }
 #endif