centralize ICC flags for *nix-systems toolchains

linux-icc and macx-icc toolchains contain a significant amount of code
which can be merged to a common configuration file.

as a side effect, such merge resulted in reduction a parts of
linux-icc and macx-icc toolchains to the common view.

Change-Id: I37d110734eeeb9bd61ca0aa942de380ac8e75f1c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

3 files changed, 130 insertions, 176 deletions

diff --git a/mkspecs/common/icc-base-unix.conf b/mkspecs/common/icc-base-unix.conf
new file mode 100644
index 0000000000..cd02ef68d5
--- /dev/null
+++ b/mkspecs/common/icc-base-unix.conf
@@ -0,0 +1,106 @@
+#
+# Base qmake configuration for ICC on *nix-systems
+#
+# Before making changes to this file, please read the comment in
+# icc-base.conf, to make sure the change goes in the right place.
+#
+# To verify that your change has the desired effect on the final configuration
+# you can use the manual test in tests/manual/mkspecs.
+#
+
+MAKEFILE_GENERATOR      = UNIX
+QMAKE_COMPILER_DEFINES += __GNUC__
+
+QMAKE_COMPILER          = gcc intel_icc   # icc pretends to be gcc
+
+QMAKE_CFLAGS_OPTIMIZE      = -O2
+QMAKE_CFLAGS_OPTIMIZE_SIZE = -Os
+
+QMAKE_CC                = icc
+QMAKE_LEX               = flex
+QMAKE_LEXFLAGS          =
+QMAKE_YACC              = yacc
+QMAKE_YACCFLAGS         = -d
+QMAKE_CFLAGS            =
+QMAKE_CFLAGS_APP        = -fPIC
+QMAKE_CFLAGS_DEPS       = -M
+QMAKE_CFLAGS_WARN_ON    = -w1 -Wcheck -wd654,1572,411,873,1125,2259,2261,3280,3373
+QMAKE_CFLAGS_WARN_OFF   = -w
+QMAKE_CFLAGS_RELEASE    = $$QMAKE_CFLAGS_OPTIMIZE
+QMAKE_CFLAGS_DEBUG      = -O0 -g
+QMAKE_CFLAGS_SHLIB      = -fPIC
+QMAKE_CFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_SHLIB
+QMAKE_CFLAGS_SPLIT_SECTIONS = -ffunction-sections -fdata-sections
+QMAKE_CFLAGS_LTCG       = -ipo
+QMAKE_CFLAGS_DISABLE_LTCG = -no-ipo
+
+QMAKE_CFLAGS_SSE2      += -msse2
+QMAKE_CFLAGS_SSE3      += -msse3
+QMAKE_CFLAGS_SSSE3     += -mssse3
+QMAKE_CFLAGS_SSE4_1    += -msse4.1
+QMAKE_CFLAGS_SSE4_2    += -msse4.2
+QMAKE_CFLAGS_AVX       += -mavx
+QMAKE_CFLAGS_AVX2      += -march=core-avx2
+QMAKE_CFLAGS_AVX512F   += -xCOMMON-AVX512
+QMAKE_CFLAGS_AVX512CD  += -xCOMMON-AVX512
+QMAKE_CFLAGS_AVX512ER  += -xMIC-AVX512
+QMAKE_CFLAGS_AVX512PF  += -xMIC-AVX512
+QMAKE_CFLAGS_AVX512DQ  += -xCORE-AVX512
+QMAKE_CFLAGS_AVX512BW  += -xCORE-AVX512
+QMAKE_CFLAGS_AVX512VL  += -xCORE-AVX512
+QMAKE_CFLAGS_AESNI     += -maes
+QMAKE_CFLAGS_F16C      += $$QMAKE_CFLAGS_AVX2
+QMAKE_CFLAGS_RDRND     += -mrdrnd
+QMAKE_CFLAGS_SHANI     += -msha
+
+QMAKE_CXX               = icpc
+QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
+QMAKE_CXXFLAGS_APP      = $$QMAKE_CFLAGS_APP
+QMAKE_CXXFLAGS_DEPS     = $$QMAKE_CFLAGS_DEPS
+QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
+QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
+QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
+QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
+QMAKE_CXXFLAGS_SHLIB    = $$QMAKE_CFLAGS_SHLIB
+QMAKE_CXXFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_STATIC_LIB
+QMAKE_CXXFLAGS_SPLIT_SECTIONS = $$QMAKE_CFLAGS_SPLIT_SECTIONS
+QMAKE_CXXFLAGS_EXCEPTIONS_OFF = -fno-exceptions
+QMAKE_CXXFLAGS_CXX11    = -std=c++11
+QMAKE_CXXFLAGS_CXX14    = -std=c++1y
+QMAKE_CXXFLAGS_CXX1Z    = -std=c++1z
+QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++11
+QMAKE_CXXFLAGS_GNUCXX14 = -std=gnu++1y
+QMAKE_CXXFLAGS_GNUCXX1Z = -std=gnu++1z
+QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
+QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
+
+# pch support
+CONFIG += icc_pch_style
+QMAKE_PCH_OUTPUT_EXT = .pchi
+QMAKE_CXXFLAGS_USE_PRECOMPILE = -pch-use ${QMAKE_PCH_OUTPUT} -include ${QMAKE_PCH_INPUT}
+QMAKE_CXXFLAGS_PRECOMPILE = -c -pch-create ${QMAKE_PCH_OUTPUT} -include ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_TEMP_OBJECT} ${QMAKE_PCH_TEMP_SOURCE}
+
+# Symbol visibility control
+QMAKE_CFLAGS_HIDESYMS   += -fvisibility=hidden
+QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
+
+QMAKE_LINK              = icpc
+QMAKE_LINK_SHLIB        = icpc
+QMAKE_LFLAGS            =
+QMAKE_LFLAGS_RELEASE    =
+QMAKE_LFLAGS_DEBUG      =
+QMAKE_LFLAGS_THREAD     =
+QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
+QMAKE_LFLAGS_CXX11      =
+QMAKE_LFLAGS_CXX14      =
+QMAKE_LFLAGS_CXX1Z      =
+QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
+
+QMAKE_INCDIR            =
+QMAKE_LIBDIR            =
+QMAKE_INCDIR_X11        =
+QMAKE_LIBDIR_X11        =
+QMAKE_INCDIR_OPENGL     =
+QMAKE_LIBDIR_OPENGL     =
+
+QMAKE_CLEAN             = -r $(OBJECTS_DIR)/ti_files
diff --git a/mkspecs/linux-icc/qmake.conf b/mkspecs/linux-icc/qmake.conf
index 57638326a0..75a601b1f1 100644
--- a/mkspecs/linux-icc/qmake.conf
+++ b/mkspecs/linux-icc/qmake.conf
@@ -1,104 +1,39 @@
 #
 # qmake configuration for linux-icc
 #
+# Written for Intel C++ Compiler for Linux version 17.0 or higher
+#
 
-MAKEFILE_GENERATOR      = UNIX
-
-QMAKE_COMPILER          = gcc intel_icc   # icc pretends to be gcc
+include(../common/icc-base-unix.conf)
 
-QMAKE_CFLAGS_OPTIMIZE      = -O2
-QMAKE_CFLAGS_OPTIMIZE_SIZE = -Os
+# modifications to icc-base-unix.conf
 
-QMAKE_CC                = icc
-QMAKE_LEX               = flex
-QMAKE_LEXFLAGS          =
-QMAKE_YACC              = yacc
-QMAKE_YACCFLAGS         = -d
-QMAKE_CFLAGS            =
-QMAKE_CFLAGS_APP        = -fPIC
-QMAKE_CFLAGS_DEPS       = -M
-QMAKE_CFLAGS_WARN_ON    = -w1 -Wall -Wcheck -wd1572,873,2259,2261,3373
-QMAKE_CFLAGS_WARN_OFF   = -w
-QMAKE_CFLAGS_RELEASE    = $$QMAKE_CFLAGS_OPTIMIZE
-QMAKE_CFLAGS_DEBUG      = -O0 -g
-QMAKE_CFLAGS_SHLIB      = -fPIC
-QMAKE_CFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_SHLIB
 QMAKE_CFLAGS_YACC       =
 QMAKE_CFLAGS_ISYSTEM    = -isystem
 QMAKE_CFLAGS_THREAD     = -D_REENTRANT
-QMAKE_CFLAGS_SPLIT_SECTIONS = -ffunction-sections -fdata-sections
-QMAKE_CFLAGS_LTCG       = -ipo -fno-fat-lto-objects
-QMAKE_CFLAGS_LTCG_FATOBJECTS = -ffat-lto-objects
-QMAKE_CFLAGS_DISABLE_LTCG = -no-ipo
 
-QMAKE_CFLAGS_SSE2      += -xSSE2
-QMAKE_CFLAGS_SSE3      += -xSSE3
-QMAKE_CFLAGS_SSSE3     += -xSSSE3
-QMAKE_CFLAGS_SSE4_1    += -xSSE4.1
-QMAKE_CFLAGS_SSE4_2    += -xSSE4.2
-QMAKE_CFLAGS_AVX       += -xAVX
-QMAKE_CFLAGS_AVX2      += -xCORE-AVX2
-QMAKE_CFLAGS_AVX512F   += -xCOMMON-AVX512
-QMAKE_CFLAGS_AVX512CD  += -xCOMMON-AVX512
-QMAKE_CFLAGS_AVX512ER  += -xMIC-AVX512
-QMAKE_CFLAGS_AVX512PF  += -xMIC-AVX512
-QMAKE_CFLAGS_AVX512DQ  += -xCORE-AVX512
-QMAKE_CFLAGS_AVX512BW  += -xCORE-AVX512
-QMAKE_CFLAGS_AVX512VL  += -xCORE-AVX512
-QMAKE_CFLAGS_AESNI     += -maes
-QMAKE_CFLAGS_F16C      += $$QMAKE_CFLAGS_AVX2
-QMAKE_CFLAGS_RDRND     += -mrdrnd
-QMAKE_CFLAGS_SHANI     += -msha
-
-QMAKE_CXX               = icpc
-QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_APP      = $$QMAKE_CFLAGS_APP
-QMAKE_CXXFLAGS_DEPS     = $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB    = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_STATIC_LIB
 QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
 QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD
-QMAKE_CXXFLAGS_SPLIT_SECTIONS = $$QMAKE_CFLAGS_SPLIT_SECTIONS
-# Disabling exceptions disabled - workaround for QTBUG-36577
-#QMAKE_CXXFLAGS_EXCEPTIONS_OFF = -fno-exceptions
-QMAKE_CXXFLAGS_CXX11    = -std=c++11
-QMAKE_CXXFLAGS_CXX14    = -std=c++1y
-QMAKE_CXXFLAGS_CXX1Z    = -std=c++1z
-QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++11
-QMAKE_CXXFLAGS_GNUCXX14 = -std=gnu++1y
-QMAKE_CXXFLAGS_GNUCXX1Z = -std=gnu++1z
-QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
-QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
-QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
-
-QMAKE_INCDIR            =
-QMAKE_LIBDIR            =
-QMAKE_INCDIR_X11        =
-QMAKE_LIBDIR_X11        =
-QMAKE_INCDIR_OPENGL     =
-QMAKE_LIBDIR_OPENGL     =
 
-QMAKE_LINK              = icpc
-QMAKE_LINK_SHLIB        = icpc
-QMAKE_LFLAGS            =
-QMAKE_LFLAGS_RELEASE    =
 QMAKE_LFLAGS_APP        = -pie
-QMAKE_LFLAGS_DEBUG      =
 QMAKE_LFLAGS_SHLIB      = -shared -shared-intel
 QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB
 QMAKE_LFLAGS_SONAME     = -Wl,-soname,
-QMAKE_LFLAGS_THREAD     =
 QMAKE_LFLAGS_NOUNDEF    = -Wl,-z,defs
-QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
 QMAKE_LFLAGS_RPATHLINK  = -Wl,-rpath-link,
-QMAKE_LFLAGS_CXX11      =
-QMAKE_LFLAGS_CXX14      =
-QMAKE_LFLAGS_CXX1Z      =
-QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
+
+# -Bsymbolic-functions (ld) support
+QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
+QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list,
+QMAKE_LFLAGS_VERSION_SCRIPT = -Wl,--version-script,
+
+# fat LTO support for Linux ICC; not available for macOS ICC, see
+# https://software.intel.com/en-us/cpp-compiler-18.0-developer-guide-and-reference-ffat-lto-objects
+QMAKE_CFLAGS_LTCG      += -fno-fat-lto-objects
+QMAKE_CXXFLAGS_LTCG    += -fno-fat-lto-objects
+QMAKE_LFLAGS_LTCG      += -fno-fat-lto-objects
+QMAKE_CFLAGS_LTCG_FATOBJECTS = -ffat-lto-objects
+QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
 
 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      = -ldl
@@ -111,22 +46,5 @@ QMAKE_OBJCOPY           = objcopy
 QMAKE_NM                = nm -P
 QMAKE_RANLIB            =
 
-QMAKE_CLEAN             = -r $(OBJECTS_DIR)/ti_files
-
-# pch support
-CONFIG += icc_pch_style
-QMAKE_PCH_OUTPUT_EXT = .pchi
-QMAKE_CXXFLAGS_USE_PRECOMPILE = -pch-use ${QMAKE_PCH_OUTPUT} -include ${QMAKE_PCH_INPUT}
-QMAKE_CXXFLAGS_PRECOMPILE = -c -pch-create ${QMAKE_PCH_OUTPUT} -include ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_TEMP_OBJECT} ${QMAKE_PCH_TEMP_SOURCE}
-
-# -Bsymbolic-functions (ld) support
-QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
-QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list,
-QMAKE_LFLAGS_VERSION_SCRIPT = -Wl,--version-script,
-
-# Symbol visibility control
-QMAKE_CFLAGS_HIDESYMS   += -fvisibility=hidden
-QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
-
 include(../common/linux.conf)
 load(qt_config)
diff --git a/mkspecs/macx-icc/qmake.conf b/mkspecs/macx-icc/qmake.conf
index e11782e885..bf3854c7c5 100644
--- a/mkspecs/macx-icc/qmake.conf
+++ b/mkspecs/macx-icc/qmake.conf
@@ -1,107 +1,37 @@
 #
 # qmake configuration for macx-icc
 #
-# Written for Intel C++ Compiler version 14.0 for OS X
+# Written for Intel C++ Compiler for macOS version 17.0 or higher
 #
 
-MAKEFILE_GENERATOR      = UNIX
+include(../common/icc-base-unix.conf)
+
+# modifications to icc-base-unix.conf
+
 CONFIG                 += app_bundle
 QMAKE_INCREMENTAL_STYLE = sublibs
-QMAKE_COMPILER_DEFINES += __APPLE__ __GNUC__
+QMAKE_COMPILER_DEFINES += __APPLE__
 
-QMAKE_COMPILER          = gcc clang intel_icc   # icc pretends to be gcc and clang
+QMAKE_COMPILER         += clang   # icc pretends to be clang too
 
-QMAKE_CFLAGS_OPTIMIZE      = -O2
-QMAKE_CFLAGS_OPTIMIZE_SIZE = -Os
-
-QMAKE_CC                = icc
-QMAKE_CFLAGS            =
-QMAKE_CFLAGS_DEPS       = -M
-QMAKE_CFLAGS_WARN_ON    = -w1 -Wcheck -wd654,1572,411,873,1125,2259,2261,3280,3373
-QMAKE_CFLAGS_WARN_OFF   = -w
-QMAKE_CFLAGS_RELEASE    = $$QMAKE_CFLAGS_OPTIMIZE
-QMAKE_CFLAGS_DEBUG      = -g -O0
-QMAKE_CFLAGS_SHLIB      = -fPIC
-QMAKE_CFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_SHLIB
 QMAKE_CFLAGS_YACC       = -Wno-unused -Wno-parentheses
 QMAKE_CFLAGS_THREAD     =
-QMAKE_CFLAGS_SPLIT_SECTIONS = -ffunction-sections -fdata-sections
-QMAKE_CFLAGS_LTCG       = -ipo
-QMAKE_CFLAGS_DISABLE_LTCG = -no-ipo
-
-QMAKE_CFLAGS_SSE2      += -msse2
-QMAKE_CFLAGS_SSE3      += -msse3
-QMAKE_CFLAGS_SSSE3     += -mssse3
-QMAKE_CFLAGS_SSE4_1    += -msse4.1
-QMAKE_CFLAGS_SSE4_2    += -msse4.2
-QMAKE_CFLAGS_AVX       += -mavx
-QMAKE_CFLAGS_AVX2      += -march=core-avx2
-QMAKE_CFLAGS_AVX512F   += -xCOMMON-AVX512
-QMAKE_CFLAGS_AVX512CD  += -xCOMMON-AVX512
-QMAKE_CFLAGS_AVX512ER  += -xMIC-AVX512
-QMAKE_CFLAGS_AVX512PF  += -xMIC-AVX512
-QMAKE_CFLAGS_AVX512DQ  += -xCORE-AVX512
-QMAKE_CFLAGS_AVX512BW  += -xCORE-AVX512
-QMAKE_CFLAGS_AVX512VL  += -xCORE-AVX512
-QMAKE_CFLAGS_AESNI     += -maes
-QMAKE_CFLAGS_F16C      += $$QMAKE_CFLAGS_AVX2
-QMAKE_CFLAGS_RDRND     += -mrdrnd
-QMAKE_CFLAGS_SHANI     += -msha
 
-QMAKE_CXX               = icpc
-QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_DEPS     = $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB    = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_STATIC_LIB
 QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
 QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD
-QMAKE_CXXFLAGS_CXX11    = -std=c++11
-QMAKE_CXXFLAGS_CXX14    = -std=c++1y
-QMAKE_CXXFLAGS_CXX1Z    = -std=c++1z
-QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++11
-QMAKE_CXXFLAGS_GNUCXX14 = -std=gnu++1y
-QMAKE_CXXFLAGS_GNUCXX1Z = -std=gnu++1z
-QMAKE_CXXFLAGS_SPLIT_SECTIONS = $$QMAKE_CFLAGS_SPLIT_SECTIONS
-QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
-QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
 
-QMAKE_LINK              = icpc
-QMAKE_LINK_SHLIB        = icpc
-QMAKE_LFLAGS            =
-QMAKE_LFLAGS_RELEASE    =
-QMAKE_LFLAGS_DEBUG      =
 QMAKE_LFLAGS_SHLIB      = -single_module -dynamiclib
 QMAKE_LFLAGS_INCREMENTAL = -undefined suppress -flat_namespace
 QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB
 QMAKE_LFLAGS_SONAME     = -install_name$${LITERAL_WHITESPACE}
 QMAKE_LFLAGS_HEADERPAD  = -headerpad_max_install_names
-QMAKE_LFLAGS_THREAD     =
-QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
-QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
 
 QMAKE_LFLAGS_VERSION    = -current_version$${LITERAL_WHITESPACE}
 QMAKE_LFLAGS_COMPAT_VERSION = -compatibility_version$${LITERAL_WHITESPACE}
 
-QMAKE_CLEAN             = -r $(OBJECTS_DIR)/ti_files
-
-# pch support
-CONFIG += icc_pch_style
-QMAKE_PCH_OUTPUT_EXT = .pchi
-QMAKE_CXXFLAGS_USE_PRECOMPILE = -pch-use ${QMAKE_PCH_OUTPUT} -include ${QMAKE_PCH_INPUT}
-QMAKE_CXXFLAGS_PRECOMPILE = -c -pch-create ${QMAKE_PCH_OUTPUT} -include ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_TEMP_OBJECT} ${QMAKE_PCH_TEMP_SOURCE}
-
-# Symbol visibility control
-QMAKE_CFLAGS_HIDESYMS   += -fvisibility=hidden
-QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
-
 QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.11
 
 QMAKE_APPLE_DEVICE_ARCHS = x86_64
 
 include(../common/macx.conf)
-
 load(qt_config)