[Libjit] [PATCH 1/3] Remove obsolete compiler option on Cygwin

[Ken Brown]

GCC no longer supports -mno-cygwin.  The proper way to build a native
Win32 application on Cygwin is to cross compile via
--host=i686-w64-mingw32 or --host=x86_64-w64-mingw32.
---
 configure.ac   | 18 +-----------------
 jit/jit-dump.c | 12 +-----------
 2 files changed, 2 insertions(+), 28 deletions(-)

diff --git a/configure.ac b/configure.ac
index 8cfae73..8a13704 100644
--- a/configure.ac
+++ b/configure.ac
@@ -35,27 +35,11 @@ case "$host" in
 esac
 AC_MSG_RESULT($JIT_ARCH)
 
-dnl Turn off the cygwin library if building for Win32.
 dnl Note: We have to include <stdlib.h> if we will be using "__int64"
 dnl because otherwise the mingw32 compiler won't define it correctly.
-AC_MSG_CHECKING([if building for some Win32 platform])
+AC_MSG_CHECKING([if building for Win32])
 AC_SUBST(JIT_INT64_INCLUDE)
 case "$host" in
-       *-*-cygwin*)
-               platform_win32=yes
-               if test "x$CC" = "x" ; then
-                       CC="gcc -mno-cygwin"
-               fi
-               if test "x$CXX" = "x" ; then
-                       if test "x$CC" = "xcl" ; then
-                               CXX="cl"
-                       else
-                               CXX="g++ -mno-cygwin"
-                       fi
-               fi
-               suppress_libm=yes
-               JIT_INT64_INCLUDE='#include <stdlib.h>'
-               ;;
        *-*-mingw*)
                platform_win32=yes
                if test "x$CC" = "xcl" ; then
diff --git a/jit/jit-dump.c b/jit/jit-dump.c
index 7d59e6c..9f6b4e2 100644
--- a/jit/jit-dump.c
+++ b/jit/jit-dump.c
@@ -687,17 +687,7 @@ static void dump_object_code(FILE *stream, void *start, 
void *end)
        FILE *file;
        int ch;
 
-#if JIT_WIN32_PLATFORM
-       /*
-        * NOTE: If libjit is compiled on cygwin with -mno-cygwin flag then
-        * fopen("/tmp/foo.s", ...) will use the root folder of the current
-        * drive. That is the full file name will be like "c:/tmp/foo". But
-        * the ``as'' and ``objdump'' utilities still use the cygwin's root.
-        * So "as /tmp/foo.s" will look for "c:/cygwin/tmp/foo.s". To avoid
-        * this ambiguity the file name has to contian the drive spec (e.g.
-        * fopen("c:/tmp/foo.s", ...) and "as c;/tmp/foo.s"). Here we assume
-        * that the TMP or TEMP environment variables always contain it.
-        */
+#if JIT_WIN32_NATIVE
        char s_path[BUFSIZ];
        char o_path[BUFSIZ];
        char *tmp_dir = getenv("TMP");
-- 
2.17.0