From 6b967b1285704db13188895d86e7b3b34c3d2ff4 Mon Sep 17 00:00:00 2001
From: Ben C <ben.c.dev@outlook.com>
Date: Wed, 25 Oct 2023 22:17:35 -0400
Subject: [PATCH] Fix macOS .dylib build when VERSION contains letters.

macOS builds with --disable-static fail to link if the version number
contains letters because of the -current_version and
-compatibility_version arguments (current version is 0.9.28rc).

This commit adds a new MACOS_DYLIB_VERSION variable to config.mak for
builds that target macOS. It has no impact on other targets.
---
 Makefile  | 4 ++--
 configure | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index ba6ec08f..11cc9a88 100644
--- a/Makefile
+++ b/Makefile
@@ -55,8 +55,8 @@ else
       # `make test' when libtcc.dylib is used (configure --disable-static), so
       # we bake a relative path into the binary. $libdir is used after install.
       LINK_LIBTCC += -Wl,-rpath,"@executable_path/$(TOP)" -Wl,-rpath,"$(libdir)"
-      DYLIBVER += -current_version $(VERSION)
-      DYLIBVER += -compatibility_version $(VERSION)
+      DYLIBVER += -current_version $(MACOS_DYLIB_VERSION)
+      DYLIBVER += -compatibility_version $(MACOS_DYLIB_VERSION)
     endif
   endif
  endif
diff --git a/configure b/configure
index a407200b..27005fe3 100755
--- a/configure
+++ b/configure
@@ -602,6 +602,12 @@ echo "VERSION = $version" >> config.mak
 echo "#define TCC_VERSION \"$version\"" >> $TMPH
 echo "@set VERSION $version" > config.texi
 
+if test "$targetos" = "Darwin"; then
+  # On macOS, -current_version and -compatibility_version must not contain letters.
+  macos_dylib_version=`echo $version | sed 's/[^0-9.]//g'`
+  echo "MACOS_DYLIB_VERSION = $macos_dylib_version" >> config.mak
+fi
+
 if test "$source_path_used" = "yes" ; then
     case $source_path in
        /*) echo "TOPSRC=$source_path";;