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Enabled position independent executable for generic GCC/Clang

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This affects mostly Linux (and probably MinGW) as default toolchains for Windows and macOS have the corresponding option turned on by default
This commit is contained in:
alexey.lysiuk 2017-12-29 09:39:01 +02:00
parent b8415199c9
commit 25d53ecd2c
2 changed files with 7 additions and 1 deletions
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6
CMakeLists.txt
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@ -234,6 +234,12 @@ else()
if( APPLE AND "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" )
set( ALL_C_FLAGS "-static-libgcc" )
endif()
if( NOT APPLE )
# Generic GCC/Clang requires position independent executable to be enabled explicitly
set( ALL_C_FLAGS "${ALL_C_FLAGS} -fPIE" )
set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie" )
endif()
endif()
set( CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${REL_LINKER_FLAGS}" )

2
src/m_fixed.h
View file

@ -7,7 +7,7 @@
// Unfortunately, the Scale function still gets badly handled on 32 bit x86 platforms so it's the last remaining piece of inline assembly
// GCC inlines
#if defined(__GNUC__) && defined(__i386__) && !defined(__clang__)
#if defined(__GNUC__) && defined(__i386__) && !defined(__clang__) && !defined(__PIC__)
#ifndef alloca
// MinGW does not seem to come with alloca defined.
#define alloca __builtin_alloca