Fixed incompatibility between new cygwin pkg-config and dune

1 files changed, 29 insertions, 0 deletions

diff --git a/dev/build/windows/patches_coq/pkg-config.c b/dev/build/windows/patches_coq/pkg-config.c
new file mode 100755
index 0000000000..e4fdcd4d7d
--- /dev/null
+++ b/dev/build/windows/patches_coq/pkg-config.c
@@ -0,0 +1,29 @@
+// MinGW personality wrapper for pkgconf
+// This is an excutable replacement for the shell scripts /bin/ARCH-pkg-config
+// Compile with e.g.
+// gcc pkg-config.c -DARCH=x86_64-w64-mingw32 -o pkg-config.exe
+// gcc pkg-config.c -DARCH=i686-w64-mingw32 -o pkg-config.exe
+// ATTENTION: Do not compile with MinGW-gcc, compile with cygwin gcc!
+//
+// To test it execute e.g.
+// $ ./pkg-config --path zlib
+// /usr/x86_64-w64-mingw32/sys-root/mingw/lib/pkgconfig/zlib.pc
+
+#include <unistd.h>
+
+#define STRINGIFY1(arg) #arg
+#define STRINGIFY(arg) STRINGIFY1(arg)
+
+int main(int argc, char *argv[])
+{
+    // +1 for extra argument, +1 for trailing NULL
+    char * argvnew[argc+2];
+    int id=0, is=0;
+
+    argvnew[id++] = argv[is++];
+    argvnew[id++] = "--personality="STRINGIFY(ARCH);
+    while( is<argc ) argvnew[id++] = argv[is++];
+    argvnew[id++] = 0;
+
+    return execv("/usr/bin/pkgconf", argvnew);
+}