[binutils-gdb/binutils-2_47-branch] PR 34486 opcodes fails to compile with mingw

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9d6b31fb8132ab2597d44d5e1ba20cc85037a427

commit 9d6b31fb8132ab2597d44d5e1ba20cc85037a427
Author: Alan Modra <[email protected]>
Date:   Sun Aug 23 19:06:52 2026 +0930

    PR 34486 opcodes fails to compile with mingw
    
    Add the config machinery to ensure asprintf is supplied by libiberty
    if missing.  While we're at it, check decls for some other functions
    used in opcodes that may not be in C90 systems.
    
            * configure.ac: CHECK_DECLS for asprintf, snprintf, strtoull
            and vsnprintf.
            * configure: Regenerate.
            * config.in: Regenerate.
    
    (cherry picked from commit c5844702b5ab12b12e66084d06c38f5235437002)

Diff:
---
 opcodes/config.in    | 16 ++++++++++++++++
 opcodes/configure    | 40 ++++++++++++++++++++++++++++++++++++++++
 opcodes/configure.ac |  2 +-
 3 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/opcodes/config.in b/opcodes/config.in
index 64b3303d32d..36e654292b2 100644
--- a/opcodes/config.in
+++ b/opcodes/config.in
@@ -26,14 +26,30 @@
    */
 #undef HAVE_DCGETTEXT
 
+/* 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 `basename', and to 0 if you
    don't. */
 #undef HAVE_DECL_BASENAME
 
+/* Define to 1 if you have the declaration of `snprintf', and to 0 if you
+   don't. */
+#undef HAVE_DECL_SNPRINTF
+
 /* Define to 1 if you have the declaration of `stpcpy', and to 0 if you don't.
    */
 #undef HAVE_DECL_STPCPY
 
+/* Define to 1 if you have the declaration of `strtoull', and to 0 if you
+   don't. */
+#undef HAVE_DECL_STRTOULL
+
+/* Define to 1 if you have the declaration of `vsnprintf', and to 0 if you
+   don't. */
+#undef HAVE_DECL_VSNPRINTF
+
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
diff --git a/opcodes/configure b/opcodes/configure
index 4729ab49b3b..a46a1c54110 100755
--- a/opcodes/configure
+++ b/opcodes/configure
@@ -13969,6 +13969,16 @@ CPPFLAGS=$OLD_CPPFLAGS
 
 
 
+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_ASPRINTF $ac_have_decl
+_ACEOF
 ac_fn_c_check_decl "$LINENO" "basename" "ac_cv_have_decl_basename" "$ac_includes_default"
 if test "x$ac_cv_have_decl_basename" = xyes; then :
   ac_have_decl=1
@@ -13979,6 +13989,16 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_BASENAME $ac_have_decl
 _ACEOF
+ac_fn_c_check_decl "$LINENO" "snprintf" "ac_cv_have_decl_snprintf" "$ac_includes_default"
+if test "x$ac_cv_have_decl_snprintf" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SNPRINTF $ac_have_decl
+_ACEOF
 ac_fn_c_check_decl "$LINENO" "stpcpy" "ac_cv_have_decl_stpcpy" "$ac_includes_default"
 if test "x$ac_cv_have_decl_stpcpy" = xyes; then :
   ac_have_decl=1
@@ -13989,6 +14009,26 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_STPCPY $ac_have_decl
 _ACEOF
+ac_fn_c_check_decl "$LINENO" "strtoull" "ac_cv_have_decl_strtoull" "$ac_includes_default"
+if test "x$ac_cv_have_decl_strtoull" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRTOULL $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "vsnprintf" "ac_cv_have_decl_vsnprintf" "$ac_includes_default"
+if test "x$ac_cv_have_decl_vsnprintf" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_VSNPRINTF $ac_have_decl
+_ACEOF
 
 
 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
diff --git a/opcodes/configure.ac b/opcodes/configure.ac
index 2c2556598c9..c6d8972aa0a 100644
--- a/opcodes/configure.ac
+++ b/opcodes/configure.ac
@@ -96,7 +96,7 @@ BFD_64_BIT
 AC_SUBST(HDEFINES)
 AC_PROG_INSTALL
 
-AC_CHECK_DECLS([basename, stpcpy])
+AC_CHECK_DECLS([asprintf, basename, snprintf, stpcpy, strtoull, vsnprintf])
 
 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
 # since sigsetjmp might only be defined as a macro.