Jacek Caban : configure: Use -fvisibility=hidden when building with msvcrt and cross compiler is not available.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9285aa5bb1338d8e2c1ac6b95974182b3f4881a9
URL:    https://gitlab.winehq.org/wine/wine/-/commit/9285aa5bb1338d8e2c1ac6b95974182...

Author: Jacek Caban 
Date:   Thu Jun 22 01:18:43 2023 +0200

configure: Use -fvisibility=hidden when building with msvcrt and cross compiler is not available.

---

configure    | 28 ++++++++++++++++++++++++++++
 configure.ac |  1 +
 2 files changed, 29 insertions(+)

diff --git a/configure b/configure
index f73bc827150..d401c7a413b 100755
--- a/configure
+++ b/configure
@@ -19387,6 +19387,34 @@ printf "%s\n" "$ac_cv_cflags__fshort_wchar" >&6; }
 if test "x$ac_cv_cflags__fshort_wchar" = xyes
 then :
   MSVCRTFLAGS="$MSVCRTFLAGS -fshort-wchar"
+fi
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -fvisibility=hidden" >&5
+printf %s "checking whether the compiler supports -fvisibility=hidden... " >&6; }
+if test ${ac_cv_cflags__fvisibility_hidden+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_wine_try_cflags_saved=$CFLAGS
+CFLAGS="$CFLAGS -fvisibility=hidden"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(int argc, char **argv) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_cflags__fvisibility_hidden=yes
+else $as_nop
+  ac_cv_cflags__fvisibility_hidden=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+CFLAGS=$ac_wine_try_cflags_saved
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cflags__fvisibility_hidden" >&5
+printf "%s\n" "$ac_cv_cflags__fvisibility_hidden" >&6; }
+if test "x$ac_cv_cflags__fvisibility_hidden" = xyes
+then :
+  MSVCRTFLAGS="$MSVCRTFLAGS -fvisibility=hidden"
 fi
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -Wno-format" >&5
 printf %s "checking whether the compiler supports -Wno-format... " >&6; }
diff --git a/configure.ac b/configure.ac
index 606be62632e..90c95c89ffb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1912,6 +1912,7 @@ char*f(const char *h,char n) {return strchr(h,n);}]])],[ac_cv_c_logicalop_noisy=
     *) MSVCRTFLAGS="-D_WIN32"
        WINE_TRY_CFLAGS([-fno-builtin],[MSVCRTFLAGS="$MSVCRTFLAGS -fno-builtin"])
        WINE_TRY_CFLAGS([-fshort-wchar],[MSVCRTFLAGS="$MSVCRTFLAGS -fshort-wchar"])
+       WINE_TRY_CFLAGS([-fvisibility=hidden],[MSVCRTFLAGS="$MSVCRTFLAGS -fvisibility=hidden"])
        WINE_TRY_CFLAGS([-Wno-format],[MSVCRTFLAGS="$MSVCRTFLAGS -Wno-format"]) ;;
   esac