From 1bc3d75a41d21dfbac111a93936977e52330e24e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Sat, 6 Oct 2018 00:16:11 +0300
Subject: [PATCH] For cross-built toolchains, rename the clang executable to
 clang-$MAJOR.exe

---
 install-wrappers.sh             | 10 ++++++++--
 wrappers/clang-target-wrapper.c | 10 +++++++---
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/install-wrappers.sh b/install-wrappers.sh
index bfc1503..11eb335 100755
--- a/install-wrappers.sh
+++ b/install-wrappers.sh
@@ -22,13 +22,14 @@ MINGW*)
 esac
 
 if [ -n "$EXEEXT" ]; then
-    UNICODE=-municode
+    CLANG_MAJOR=$(basename $(echo $PREFIX/lib/clang/* | awk '{print $NF}') | cut -f 1 -d .)
+    CTW_FLAGS="-municode -DCLANG=\"clang-$CLANG_MAJOR\""
 fi
 
 mkdir -p $PREFIX/bin
 cp wrappers/*-wrapper.sh $PREFIX/bin
 $CC wrappers/change-pe-arch.c -o $PREFIX/bin/change-pe-arch$EXEEXT
-$CC wrappers/clang-target-wrapper.c -o $PREFIX/bin/clang-target-wrapper$EXEEXT -O2 -Wl,-s $UNICODE
+$CC wrappers/clang-target-wrapper.c -o $PREFIX/bin/clang-target-wrapper$EXEEXT -O2 -Wl,-s $CTW_FLAGS
 if [ -n "$EXEEXT" ]; then
     # For Windows, we should prefer the executable wrapper, which also works
     # when invoked from outside of MSYS.
@@ -52,3 +53,8 @@ for arch in $ARCHS; do
         ln -sf objcopy-wrapper.sh $arch-w64-mingw32-$exec
     done
 done
+if [ -n "$EXEEXT" ]; then
+    if [ ! -L clang$EXEEXT ]; then
+        mv clang$EXEEXT clang-$CLANG_MAJOR$EXEEXT
+    fi
+fi
diff --git a/wrappers/clang-target-wrapper.c b/wrappers/clang-target-wrapper.c
index d432c07..0474157 100644
--- a/wrappers/clang-target-wrapper.c
+++ b/wrappers/clang-target-wrapper.c
@@ -20,6 +20,10 @@
 #define _UNICODE
 #endif
 
+#ifndef CLANG
+#define CLANG "clang"
+#endif
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -82,13 +86,13 @@ int _tmain(int argc, TCHAR* argv[]) {
     const TCHAR *sep = _tcsrchr(argv0, '/');
     if (!sep)
         sep = _tcsrchr(argv0, '\\');
-    TCHAR *clang = _T("clang");
+    TCHAR *clang = _T(CLANG);
     const TCHAR *basename = argv0;
     if (sep) {
         int baselen = sep + 1 - argv0;
         clang = malloc((_tcslen(argv0) + 50) * sizeof(*clang));
         memcpy(clang, argv0, baselen * sizeof(*clang));
-        _tcscpy(clang + baselen, _T("clang"));
+        _tcscpy(clang + baselen, _T(CLANG));
         basename = sep + 1;
     }
 #ifdef _WIN32
@@ -96,7 +100,7 @@ int _tmain(int argc, TCHAR* argv[]) {
     GetModuleFileName(NULL, module_path, sizeof(module_path)/sizeof(module_path[0]));
     TCHAR *sep2 = _tcsrchr(module_path, '\\');
     if (sep2) {
-        _tcscpy(sep2 + 1, _T("clang"));
+        _tcscpy(sep2 + 1, _T(CLANG));
         clang = module_path;
     }
 #endif