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35 # Test C flags FLAGS, and set VARIABLE to true if the work. Also add the
37 MACRO(GMX_TEST_CFLAG VARIABLE FLAGS CFLAGSVAR)
38 IF(NOT DEFINED ${VARIABLE})
39 CHECK_C_COMPILER_FLAG("${FLAGS}" ${VARIABLE})
40 ENDIF(NOT DEFINED ${VARIABLE})
42 SET (${CFLAGSVAR} "${FLAGS} ${${CFLAGSVAR}}")
44 ENDMACRO(GMX_TEST_CFLAG VARIABLE FLAGS CFLAGSVAR)
46 # Test C++ flags FLAGS, and set VARIABLE to true if the work. Also add the
47 # flags to CXXFLAGSVAR.
48 MACRO(GMX_TEST_CXXFLAG VARIABLE FLAGS CXXFLAGSVAR)
49 IF(NOT DEFINED ${VARIABLE})
50 CHECK_CXX_COMPILER_FLAG("${FLAGS}" ${VARIABLE})
51 ENDIF(NOT DEFINED ${VARIABLE})
53 SET (${CXXFLAGSVAR} "${FLAGS} ${${CXXFLAGSVAR}}")
55 ENDMACRO(GMX_TEST_CXXFLAG VARIABLE FLAGS CXXFLAGSVAR)
58 # This is the actual exported function to be called
61 include(CheckCCompilerFlag)
62 include(CheckCXXCompilerFlag)
65 if(CMAKE_COMPILER_IS_GNUCC)
66 #flags are added in reverse order and -Wno* need to appear after -Wall
68 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
70 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value -Wunused-parameter" GMXC_CFLAGS)
71 GMX_TEST_CFLAG(CFLAGS_WARN_EXTRA "-Wextra -Wno-missing-field-initializers -Wno-sign-compare" GMXC_CFLAGS)
73 GMX_TEST_CFLAG(CFLAGS_EXCESS_PREC "-fexcess-precision=fast" GMXC_CFLAGS_RELEASE)
74 GMX_TEST_CFLAG(CFLAGS_COPT "-fomit-frame-pointer -funroll-all-loops"
76 GMX_TEST_CFLAG(CFLAGS_NOINLINE "-fno-inline" GMXC_CFLAGS_DEBUG)
79 if(CMAKE_COMPILER_IS_GNUCXX)
81 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
83 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused-function" GMXC_CXXFLAGS)
84 # Problematic with CUDA
85 # GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EFFCXX "-Wnon-virtual-dtor" GMXC_CXXFLAGS)
86 GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra -Wno-missing-field-initializers" GMXC_CXXFLAGS)
88 GMX_TEST_CXXFLAG(CXXFLAGS_EXCESS_PREC "-fexcess-precision=fast" GMXC_CXXFLAGS_RELEASE)
89 GMX_TEST_CXXFLAG(CXXFLAGS_COPT "-fomit-frame-pointer -funroll-all-loops"
90 GMXC_CXXFLAGS_RELEASE)
91 GMX_TEST_CXXFLAG(CXXFLAGS_NOINLINE "-fno-inline" GMXC_CXXFLAGS_DEBUG)
95 if (CMAKE_C_COMPILER_ID MATCHES "Intel")
98 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
100 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall" GMXC_CFLAGS)
101 GMX_TEST_CFLAG(CFLAGS_STDGNU "-std=gnu99" GMXC_CFLAGS)
102 GMX_TEST_CFLAG(CFLAGS_OPT "-ip -funroll-all-loops" GMXC_CFLAGS_RELEASE)
104 GMX_TEST_CFLAG(CFLAGS_WARN "/W2" GMXC_CFLAGS)
105 GMX_TEST_CFLAG(CFLAGS_X86 "/Qip" GMXC_CFLAGS_RELEASE)
109 if (CMAKE_CXX_COMPILER_ID MATCHES "Intel")
112 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
114 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall" GMXC_CXXFLAGS)
115 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-ip -funroll-all-loops" GMXC_CXXFLAGS_RELEASE)
117 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/W2" GMXC_CXXFLAGS)
118 GMX_TEST_CXXFLAG(CXXFLAGS_X86 "/Qip" GMXC_CXXFLAGS_RELEASE)
123 if (CMAKE_C_COMPILER_ID MATCHES "PGI")
124 GMX_TEST_CFLAG(CFLAGS_OPT "-fastsse" GMXC_CFLAGS_RELEASE)
126 if (CMAKE_CXX_COMPILER_ID MATCHES "PGI")
127 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-fastsse" GMXC_CXXFLAGS_RELEASE)
131 if (CMAKE_C_COMPILER_ID MATCHES "PathScale")
133 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
135 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CFLAGS)
136 GMX_TEST_CFLAG(CFLAGS_OPT "-OPT:Ofast -fno-math-errno -ffast-math"
138 GMX_TEST_CFLAG(CFLAGS_LANG "-std=gnu99" GMXC_CFLAGS)
140 if (CMAKE_CXX_COMPILER_ID MATCHES "PathScale")
142 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
144 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CXXFLAGS)
145 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-OPT:Ofast -fno-math-errno -ffast-math"
146 GMXC_CXXFLAGS_RELEASE)
150 if (CMAKE_C_COMPILER_ID MATCHES "XL")
151 GMX_TEST_CFLAG(CFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CFLAGS)
152 GMX_TEST_CFLAG(CFLAGS_LANG "-qlanglvl=extc99" GMXC_CFLAGS)
154 if (CMAKE_CXX_COMPILER_ID MATCHES "XL")
155 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CXXFLAGS)
160 # disable warnings for:
161 # forcing value to bool
162 # "this" in initializer list
163 # deprecated (posix, secure) functions
164 GMX_TEST_CFLAG(CFLAGS_WARN "/wd4800 /wd4355 /wd4996" GMXC_CFLAGS)
165 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/wd4800 /wd4355 /wd4996" GMXC_CXXFLAGS)
168 if (CMAKE_C_COMPILER_ID MATCHES "Clang")
170 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
172 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value -Wunused-parameter" GMXC_CFLAGS)
175 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
177 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
179 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused-function" GMXC_CXXFLAGS)
180 GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra -Wno-missing-field-initializers" GMXC_CXXFLAGS)
183 # now actually set the flags:
185 if ( NOT GMX_SKIP_DEFAULT_CFLAGS )
186 set(CMAKE_C_FLAGS "${GMXC_CFLAGS} ${CMAKE_C_FLAGS}")
187 set(CMAKE_C_FLAGS_RELEASE "${GMXC_CFLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}")
188 set(CMAKE_C_FLAGS_DEBUG "${GMXC_CFLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}")
192 if ( NOT GMX_SKIP_DEFAULT_CFLAGS)
193 set(CMAKE_CXX_FLAGS "${GMXC_CXXFLAGS} ${CMAKE_CXX_FLAGS}")
194 set(CMAKE_CXX_FLAGS_RELEASE
195 "${GMXC_CXXFLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}")
196 set(CMAKE_CXX_FLAGS_DEBUG
197 "${GMXC_CXXFLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}")
199 ENDMACRO(gmx_c_flags)