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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 GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EFFCXX "-Wnon-virtual-dtor" GMXC_CXXFLAGS)
85 GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra -Wno-missing-field-initializers" GMXC_CXXFLAGS)
87 GMX_TEST_CXXFLAG(CXXFLAGS_EXCESS_PREC "-fexcess-precision=fast" GMXC_CXXFLAGS_RELEASE)
88 GMX_TEST_CXXFLAG(CXXFLAGS_COPT "-fomit-frame-pointer -funroll-all-loops"
89 GMXC_CXXFLAGS_RELEASE)
90 GMX_TEST_CXXFLAG(CXXFLAGS_NOINLINE "-fno-inline" GMXC_CXXFLAGS_DEBUG)
94 if (CMAKE_C_COMPILER_ID MATCHES "Intel")
97 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
99 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall" GMXC_CFLAGS)
100 GMX_TEST_CFLAG(CFLAGS_STDGNU "-std=gnu99" GMXC_CFLAGS)
101 GMX_TEST_CFLAG(CFLAGS_OPT "-ip -funroll-all-loops" GMXC_CFLAGS_RELEASE)
103 GMX_TEST_CFLAG(CFLAGS_WARN "/W2" GMXC_CFLAGS)
104 GMX_TEST_CFLAG(CFLAGS_X86 "/Qip" GMXC_CFLAGS_RELEASE)
108 if (CMAKE_CXX_COMPILER_ID MATCHES "Intel")
111 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
113 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall" GMXC_CXXFLAGS)
114 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-ip -funroll-all-loops" GMXC_CXXFLAGS_RELEASE)
116 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/W2" GMXC_CXXFLAGS)
117 GMX_TEST_CXXFLAG(CXXFLAGS_X86 "/Qip" GMXC_CXXFLAGS_RELEASE)
122 if (CMAKE_C_COMPILER_ID MATCHES "PGI")
123 GMX_TEST_CFLAG(CFLAGS_OPT "-fastsse" GMXC_CFLAGS_RELEASE)
125 if (CMAKE_CXX_COMPILER_ID MATCHES "PGI")
126 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-fastsse" GMXC_CXXFLAGS_RELEASE)
130 if (CMAKE_C_COMPILER_ID MATCHES "PathScale")
132 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
134 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CFLAGS)
135 GMX_TEST_CFLAG(CFLAGS_OPT "-OPT:Ofast -fno-math-errno -ffast-math"
137 GMX_TEST_CFLAG(CFLAGS_LANG "-std=gnu99" GMXC_CFLAGS)
139 if (CMAKE_CXX_COMPILER_ID MATCHES "PathScale")
141 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
143 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused -Wunused-value" GMXC_CXXFLAGS)
144 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-OPT:Ofast -fno-math-errno -ffast-math"
145 GMXC_CXXFLAGS_RELEASE)
149 if (CMAKE_C_COMPILER_ID MATCHES "XL")
150 GMX_TEST_CFLAG(CFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CFLAGS)
151 GMX_TEST_CFLAG(CFLAGS_LANG "-qlanglvl=extc99" GMXC_CFLAGS)
153 if (CMAKE_CXX_COMPILER_ID MATCHES "XL")
154 GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CXXFLAGS)
159 # disable warnings for:
160 # forcing value to bool
161 # "this" in initializer list
162 # deprecated (posix, secure) functions
163 GMX_TEST_CFLAG(CFLAGS_WARN "/wd4800 /wd4355 /wd4996" GMXC_CFLAGS)
164 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/wd4800 /wd4355 /wd4996" GMXC_CXXFLAGS)
167 if (CMAKE_C_COMPILER_ID MATCHES "Clang")
169 GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
171 GMX_TEST_CFLAG(CFLAGS_WARN "-Wall -Wno-unused -Wunused-value -Wunused-parameter" GMXC_CFLAGS)
174 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
176 GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
178 GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall -Wno-unused-function" GMXC_CXXFLAGS)
179 GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra -Wno-missing-field-initializers" GMXC_CXXFLAGS)
182 # now actually set the flags:
184 if ( NOT GMX_SKIP_DEFAULT_CFLAGS )
185 set(CMAKE_C_FLAGS "${GMXC_CFLAGS} ${CMAKE_C_FLAGS}")
186 set(CMAKE_C_FLAGS_RELEASE "${GMXC_CFLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}")
187 set(CMAKE_C_FLAGS_DEBUG "${GMXC_CFLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}")
191 if ( NOT GMX_SKIP_DEFAULT_CFLAGS)
192 set(CMAKE_CXX_FLAGS "${GMXC_CXXFLAGS} ${CMAKE_CXX_FLAGS}")
193 set(CMAKE_CXX_FLAGS_RELEASE
194 "${GMXC_CXXFLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}")
195 set(CMAKE_CXX_FLAGS_DEBUG
196 "${GMXC_CXXFLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}")
198 ENDMACRO(gmx_c_flags)