From 10caa0880214e9d360811da8ffc396da11316978 Mon Sep 17 00:00:00 2001 From: Philip Oakley Date: Sun, 19 Jul 2015 17:03:15 +0100 Subject: [PATCH] msvc: add No_SafeExceptionHandler option Microsoft flipped the Windows Safe Exception Handling default in VS2013 so that zlib became unacceptable to certain OS versions (Vista and subsequent 32-bit OS's) without the addition of the option -SAFESEH:NO. Provide a switch to disable the Safe Exception Handler when required. The option ImageHasSafeExceptionHandlers for VS2013 is not available in earlier versions, so use the SAFESEH:NO linker flag. See https://msdn.microsoft.com/en-us/library/9a89h429.aspx for further details. This has only had limited testing due to the lack of a suitable system. Helped-by: Yue Lin Ho Signed-off-by: Philip Oakley Signed-off-by: Johannes Schindelin --- config.mak.uname | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/config.mak.uname b/config.mak.uname index 2cbfdba2a8..3f097739c3 100644 --- a/config.mak.uname +++ b/config.mak.uname @@ -1,5 +1,9 @@ # Platform specific Makefile tweaks based on uname detection +# Define NO_SAFESEH if you need MSVC/Visual Studio to ignore the lack of +# Microsoft's Safe Exception Handling in libraries (such as zlib). +# Typically required for VS2013+/32-bit compilation on Vista+ versions. + uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not') uname_M := $(shell sh -c 'uname -m 2>/dev/null || echo not') uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not') @@ -438,6 +442,11 @@ ifeq ($(uname_S),Windows) # release mode) to force a PDB to be generated (like RelWithDebInfo). BASIC_CFLAGS += -Zi BASIC_LDFLAGS += -debug + +ifdef NO_SAFESEH + LDFLAGS += -SAFESEH:NO +endif + ifndef DEBUG BASIC_CFLAGS += -GL -Gy -O2 -Oy- -MD -DNDEBUG BASIC_LDFLAGS += -release -LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO /DEBUGTYPE:CV,FIXUP