[binutils-gdb] PR26328, Compilation warning when building ld v2.35 with MinGW

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=bfd133d0d8432d80ea1cbfc1fc38adee0d502ba3

commit bfd133d0d8432d80ea1cbfc1fc38adee0d502ba3
Author: Alan Modra <amodra@gmail.com>
Date:   Mon Aug 3 10:58:11 2020 +0930

    PR26328, Compilation warning when building ld v2.35 with MinGW
    
            PR 26328
            * configure.ac: AC_CHECK_DECLS asprintf.
            * configure: Regenerate.
            * config.in: Regenerate.

Diff:
---
 ld/ChangeLog    |  7 +++++++
 ld/config.in    |  4 ++++
 ld/configure    | 34 ++++++++++++++++++++++------------
 ld/configure.ac |  2 +-
 4 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index edde902940c..eeee6d08a6c 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,10 @@
+2020-08-03  Alan Modra  <amodra@gmail.com>
+
+	PR 26328
+	* configure.ac: AC_CHECK_DECLS asprintf.
+	* configure: Regenerate.
+	* config.in: Regenerate.
+
 2020-08-03  Alan Modra  <amodra@gmail.com>
 
 	* testsuite/ld-elfvers/vers.exp (objdump_symstuff): Remove unused
diff --git a/ld/config.in b/ld/config.in
index f1712107367..2f4e5ea33e3 100644
--- a/ld/config.in
+++ b/ld/config.in
@@ -49,6 +49,10 @@
 /* Define to 1 if you have the `close' function. */
 #undef HAVE_CLOSE
 
+/* Define to 1 if you have the declaration of `asprintf', and to 0 if you
+   don't. */
+#undef HAVE_DECL_ASPRINTF
+
 /* Define to 1 if you have the declaration of `environ', and to 0 if you
    don't. */
 #undef HAVE_DECL_ENVIRON
diff --git a/ld/configure b/ld/configure
index d2df419414e..b0b92a3cbfb 100755
--- a/ld/configure
+++ b/ld/configure
@@ -17416,35 +17416,35 @@ $as_echo "#define USE_BINARY_FOPEN 1" >>confdefs.h
  ;;
 esac
 
-ac_fn_c_check_decl "$LINENO" "strstr" "ac_cv_have_decl_strstr" "$ac_includes_default"
-if test "x$ac_cv_have_decl_strstr" = xyes; then :
+ac_fn_c_check_decl "$LINENO" "asprintf" "ac_cv_have_decl_asprintf" "$ac_includes_default"
+if test "x$ac_cv_have_decl_asprintf" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_STRSTR $ac_have_decl
+#define HAVE_DECL_ASPRINTF $ac_have_decl
 _ACEOF
-ac_fn_c_check_decl "$LINENO" "free" "ac_cv_have_decl_free" "$ac_includes_default"
-if test "x$ac_cv_have_decl_free" = xyes; then :
+ac_fn_c_check_decl "$LINENO" "environ" "ac_cv_have_decl_environ" "$ac_includes_default"
+if test "x$ac_cv_have_decl_environ" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_FREE $ac_have_decl
+#define HAVE_DECL_ENVIRON $ac_have_decl
 _ACEOF
-ac_fn_c_check_decl "$LINENO" "sbrk" "ac_cv_have_decl_sbrk" "$ac_includes_default"
-if test "x$ac_cv_have_decl_sbrk" = xyes; then :
+ac_fn_c_check_decl "$LINENO" "free" "ac_cv_have_decl_free" "$ac_includes_default"
+if test "x$ac_cv_have_decl_free" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_SBRK $ac_have_decl
+#define HAVE_DECL_FREE $ac_have_decl
 _ACEOF
 ac_fn_c_check_decl "$LINENO" "getenv" "ac_cv_have_decl_getenv" "$ac_includes_default"
 if test "x$ac_cv_have_decl_getenv" = xyes; then :
@@ -17456,15 +17456,25 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_GETENV $ac_have_decl
 _ACEOF
-ac_fn_c_check_decl "$LINENO" "environ" "ac_cv_have_decl_environ" "$ac_includes_default"
-if test "x$ac_cv_have_decl_environ" = xyes; then :
+ac_fn_c_check_decl "$LINENO" "sbrk" "ac_cv_have_decl_sbrk" "$ac_includes_default"
+if test "x$ac_cv_have_decl_sbrk" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_ENVIRON $ac_have_decl
+#define HAVE_DECL_SBRK $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "strstr" "ac_cv_have_decl_strstr" "$ac_includes_default"
+if test "x$ac_cv_have_decl_strstr" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRSTR $ac_have_decl
 _ACEOF
 
 
diff --git a/ld/configure.ac b/ld/configure.ac
index 5ef25e3eb88..74bcdfec36d 100644
--- a/ld/configure.ac
+++ b/ld/configure.ac
@@ -306,7 +306,7 @@ fi
 
 BFD_BINARY_FOPEN
 
-AC_CHECK_DECLS([strstr, free, sbrk, getenv, environ])
+AC_CHECK_DECLS([asprintf, environ, free, getenv, sbrk, strstr])
 
 # Link in zlib if we can.  This allows us to read and write
 # compressed CTF sections.