From 1661572fcc8eed78d5cb20edf5e8478d4616ce36 Mon Sep 17 00:00:00 2001 From: Stanislaw Halik Date: Mon, 15 Jun 2015 08:13:46 +0200 Subject: cmake: now able to build with IPA with minor changes For OpenCV videoio/cap_dshow.cpp, deactivate LTO for just that file. Either with cmake or #pragma. Otherwise opening the camera causes a crash in DShow machinery. LibOVR build without LTO completely as there are some duplicate symbol errors. Other than that, LTO build seems to work fine. --- cmake/mingw-w64.cmake | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'cmake') diff --git a/cmake/mingw-w64.cmake b/cmake/mingw-w64.cmake index 1680166a..7e34746d 100644 --- a/cmake/mingw-w64.cmake +++ b/cmake/mingw-w64.cmake @@ -25,14 +25,16 @@ SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) -set(lto "-flto -fuse-linker-plugin -flto-partition=none -fno-fat-lto-objects") -set(rice "-ftree-vectorize -ffast-math -mfpmath=both -fipa-pta -fmerge-all-constants -fipa-icf -fivopts -fweb") -set(cpu "-march=i686 -mtune=corei7-avx -msse -msse2 -mno-sse3 -mno-avx") +set(lto "-flto -fuse-linker-plugin") +set(rice "-fmerge-all-constants -fipa-pta -fipa-icf -fweb -fmodulo-sched -fmodulo-sched-allow-regmoves -fgcse-sm -fgcse-las") +set(cpu "-O3 -march=i686 -mtune=corei7-avx -ffast-math -mfpmath=both -msse -msse2 -mno-sse3 -mno-avx") +set(lto-link "${lto} -flto-partition=none -fno-fat-lto-objects") set(CFLAGS-OVERRIDE "" CACHE STRING "") -set(CMAKE_C_FLAGS_RELEASE "-O3 ${rice} ${lto} ${cpu} ${CFLAGS-OVERRIDE}" CACHE STRING "" FORCE) -set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "-msse -msse2 -mno-sse3 -mno-avx ${lto}" CACHE STRING "" FORCE) -set(CMAKE_EXE_LINKER_FLAGS_RELEASE ${CMAKE_SHARED_LINKER_FLAGS_RELEASE}) +set(CMAKE_C_FLAGS_RELEASE "${rice} ${lto} ${cpu} ${CFLAGS-OVERRIDE}" CACHE STRING "" FORCE) set(CMAKE_CXX_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE} CACHE STRING "" FORCE) +set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${cpu} ${lto-link} ${CFLAGS-OVERRIDE}" CACHE STRING "" FORCE) +set(CMAKE_EXE_LINKER_FLAGS_RELEASE ${CMAKE_SHARED_LINKER_FLAGS_RELEASE} CACHE STRING "" FORCE) +set(CMAKE_MODULE_LINKER_FLAGS_RELEASE ${CMAKE_SHARED_LINKER_FLAGS_RELEASE} CACHE STRING "" FORCE) set(CMAKE_BUILD_TYPE "RELEASE" CACHE STRING "" FORCE) -- cgit v1.2.3