mstorsjo created this revision.
mstorsjo added reviewers: rnk, martell, compnerd, smeenai.
In this setup, skip adding all the default windows import libraries, if linking
to windowsapp (which replaces them, when targeting the windows store/UWP api
subset).
With GCC, the same is achieved by using a custom spec file, but since clang
doesn't use spec files, we have to allow other means of overriding what default
libraries to use (without going all the way to using -nostdlib, which would
exclude everything). The same approach, in detecting certain user specified
libraries and omitting others from the defaults, was already used in SVN
r314138.
Repository:
rC Clang
https://reviews.llvm.org/D49059
Files:
lib/Driver/ToolChains/MinGW.cpp
test/Driver/mingw-windowsapp.c
Index: test/Driver/mingw-windowsapp.c
===================================================================
--- /dev/null
+++ test/Driver/mingw-windowsapp.c
@@ -0,0 +1,6 @@
+// RUN: %clang -v -target i686-pc-windows-gnu -### %s 2>&1 | FileCheck
-check-prefix=CHECK_DEFAULT %s
+// RUN: %clang -v -target i686-pc-windows-gnu -### %s -lwindowsapp 2>&1 |
FileCheck -check-prefix=CHECK_WINDOWSAPP %s
+
+// CHECK_DEFAULT: "-lmsvcrt" "-ladvapi32" "-lshell32" "-luser32" "-lkernel32"
"-lmingw32"
+// CHECK_WINDOWSAPP: "-lwindowsapp" "-lmingw32"
+// CHECK_WINDOWSAPP-SAME: "-lmsvcrt" "-lmingw32"
Index: lib/Driver/ToolChains/MinGW.cpp
===================================================================
--- lib/Driver/ToolChains/MinGW.cpp
+++ lib/Driver/ToolChains/MinGW.cpp
@@ -201,6 +201,11 @@
CmdArgs.push_back("-Bdynamic");
}
+ bool HasWindowsApp = false;
+ for (auto Lib : Args.getAllArgValues(options::OPT_l))
+ if (Lib == "windowsapp")
+ HasWindowsApp = true;
+
if (!Args.hasArg(options::OPT_nostdlib)) {
if (!Args.hasArg(options::OPT_nodefaultlibs)) {
if (Args.hasArg(options::OPT_static))
@@ -223,15 +228,17 @@
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-lpthread");
- // add system libraries
- if (Args.hasArg(options::OPT_mwindows)) {
- CmdArgs.push_back("-lgdi32");
- CmdArgs.push_back("-lcomdlg32");
+ if (!HasWindowsApp) {
+ // add system libraries
+ if (Args.hasArg(options::OPT_mwindows)) {
+ CmdArgs.push_back("-lgdi32");
+ CmdArgs.push_back("-lcomdlg32");
+ }
+ CmdArgs.push_back("-ladvapi32");
+ CmdArgs.push_back("-lshell32");
+ CmdArgs.push_back("-luser32");
+ CmdArgs.push_back("-lkernel32");
}
- CmdArgs.push_back("-ladvapi32");
- CmdArgs.push_back("-lshell32");
- CmdArgs.push_back("-luser32");
- CmdArgs.push_back("-lkernel32");
if (Args.hasArg(options::OPT_static))
CmdArgs.push_back("--end-group");
Index: test/Driver/mingw-windowsapp.c
===================================================================
--- /dev/null
+++ test/Driver/mingw-windowsapp.c
@@ -0,0 +1,6 @@
+// RUN: %clang -v -target i686-pc-windows-gnu -### %s 2>&1 | FileCheck -check-prefix=CHECK_DEFAULT %s
+// RUN: %clang -v -target i686-pc-windows-gnu -### %s -lwindowsapp 2>&1 | FileCheck -check-prefix=CHECK_WINDOWSAPP %s
+
+// CHECK_DEFAULT: "-lmsvcrt" "-ladvapi32" "-lshell32" "-luser32" "-lkernel32" "-lmingw32"
+// CHECK_WINDOWSAPP: "-lwindowsapp" "-lmingw32"
+// CHECK_WINDOWSAPP-SAME: "-lmsvcrt" "-lmingw32"
Index: lib/Driver/ToolChains/MinGW.cpp
===================================================================
--- lib/Driver/ToolChains/MinGW.cpp
+++ lib/Driver/ToolChains/MinGW.cpp
@@ -201,6 +201,11 @@
CmdArgs.push_back("-Bdynamic");
}
+ bool HasWindowsApp = false;
+ for (auto Lib : Args.getAllArgValues(options::OPT_l))
+ if (Lib == "windowsapp")
+ HasWindowsApp = true;
+
if (!Args.hasArg(options::OPT_nostdlib)) {
if (!Args.hasArg(options::OPT_nodefaultlibs)) {
if (Args.hasArg(options::OPT_static))
@@ -223,15 +228,17 @@
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-lpthread");
- // add system libraries
- if (Args.hasArg(options::OPT_mwindows)) {
- CmdArgs.push_back("-lgdi32");
- CmdArgs.push_back("-lcomdlg32");
+ if (!HasWindowsApp) {
+ // add system libraries
+ if (Args.hasArg(options::OPT_mwindows)) {
+ CmdArgs.push_back("-lgdi32");
+ CmdArgs.push_back("-lcomdlg32");
+ }
+ CmdArgs.push_back("-ladvapi32");
+ CmdArgs.push_back("-lshell32");
+ CmdArgs.push_back("-luser32");
+ CmdArgs.push_back("-lkernel32");
}
- CmdArgs.push_back("-ladvapi32");
- CmdArgs.push_back("-lshell32");
- CmdArgs.push_back("-luser32");
- CmdArgs.push_back("-lkernel32");
if (Args.hasArg(options::OPT_static))
CmdArgs.push_back("--end-group");
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