From 0f847982468388aa05db84e8a42299b123d98dab Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Wed, 13 Nov 2024 16:41:36 +0100
Subject: [PATCH] configure: Use -ffunction-sections for PE targets.

---
 configure    | 36 ++++++++++++++++++++++++++++++++++++
 configure.ac |  1 +
 2 files changed, 37 insertions(+)

diff --git a/configure b/configure
index bf0f6e8903b..d417dc41724 100755
--- a/configure
+++ b/configure
@@ -11403,6 +11403,42 @@ then :
   as_fn_append ${wine_arch}_EXTRACFLAGS " -Wenum-conversion"
 fi } ;;
 esac
+fi }
+    { as_ac_var=`printf "%s\n" "ac_cv_${wine_arch}_cflags_-ffunction-sections" | sed "$as_sed_sh"`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -ffunction-sections" >&5
+printf %s "checking whether $CC supports -ffunction-sections... " >&6; }
+if eval test \${$as_ac_var+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) ac_wine_try_cflags_saved=$CFLAGS
+ac_wine_try_cflags_saved_exeext=$ac_exeext
+CFLAGS="$CFLAGS -nostdlib -nodefaultlibs -ffunction-sections"
+ac_exeext=".exe"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+void *__os_arm64x_dispatch_ret = 0;
+int __cdecl mainCRTStartup(void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  eval "$as_ac_var=yes"
+else case e in #(
+  e) eval "$as_ac_var=no" ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+CFLAGS=$ac_wine_try_cflags_saved
+ac_exeext=$ac_wine_try_cflags_saved_exeext ;;
+esac
+fi
+eval ac_res=\$$as_ac_var
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_var"\" = x"yes"
+then :
+  as_fn_append ${wine_arch}_EXTRACFLAGS " -ffunction-sections"
 fi }
 
         { as_ac_var=`printf "%s\n" "ac_cv_${wine_arch}_cflags_-flarge-source-files -Wmisleading-indentation" | sed "$as_sed_sh"`
diff --git a/configure.ac b/configure.ac
index 8edfce44d6e..d82e338ae2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -961,6 +961,7 @@ This is an error since --enable-archs=$wine_arch was requested.])])
     WINE_TRY_PE_CFLAGS([-Wlogical-op])
     WINE_TRY_PE_CFLAGS([-Wabsolute-value])
     WINE_TRY_PE_CFLAGS([-Wenum-enum-conversion],[:],WINE_TRY_PE_CFLAGS([-Wenum-conversion]))
+    WINE_TRY_PE_CFLAGS([-ffunction-sections])
 
     dnl GCC can't handle large files when -Wmisleading-indentation is enabled (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89549)
     WINE_TRY_PE_CFLAGS([-flarge-source-files -Wmisleading-indentation],[AS_VAR_APPEND(${wine_arch}_EXTRACFLAGS,[" -Wno-misleading-indentation"])])