1dnl @synopsis AX_CFLAGS_OSF_OPTION (optionflag [,[shellvar][,[A][,[NA]]]) 2dnl 3dnl AX_CFLAGS_OSF_OPTION(-noproblems) would show a message as like 4dnl "checking CFLAGS for osf/cc -noproblems ... yes" and adds the 5dnl optionflag to CFLAGS if it is understood. You can override the 6dnl shellvar-default of CFLAGS of course. The order of arguments stems 7dnl from the explicit macros like AX_CFLAGS_WARN_ALL. 8dnl 9dnl The cousin AX_CXXFLAGS_OSF_OPTION would check for an option to add 10dnl to CXXFLAGS - and it uses the autoconf setup for C++ instead of C 11dnl (since it is possible to use different compilers for C and C++). 12dnl 13dnl The macro is a lot simpler than any special AX_CFLAGS_* macro (or 14dnl ac_cxx_rtti.m4 macro) but allows to check for arbitrary options. 15dnl However, if you use this macro in a few places, it would be great 16dnl if you would make up a new function-macro and submit it to the 17dnl ac-archive. 18dnl 19dnl - $1 option-to-check-for : required ("-option" as non-value) 20dnl - $2 shell-variable-to-add-to : CFLAGS (or CXXFLAGS in the other case) 21dnl - $3 action-if-found : add value to shellvariable 22dnl - $4 action-if-not-found : nothing 23dnl 24dnl note: in earlier versions, $1-$2 were swapped. We try to detect the 25dnl situation and accept a $2=~/-/ as being the old 26dnl option-to-check-for. 27dnl 28dnl see also: AX_CFLAGS_GCC_OPTION for the widely used original 29dnl variant. 30dnl 31dnl This descendent modified by Shannon Brown from AIX version; also 32dnl modified to use AC_LANG_CPLUSPLUS instead of AC_LANG_CXX, as well as 33dnl regexp([],[]) instead of m4_regexp([],[]). 34dnl 35dnl @category C 36dnl @author Shannon Brown <slbrow@sandia.gov> 37dnl @version 2005-01-21 38dnl @license GPLWithACException 39 40AC_DEFUN([AX_CFLAGS_OSF_OPTION_OLD], [dnl 41AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl 42AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_osf_option_$2])dnl 43AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for osf/cc m4_ifval($2,$2,-option)], 44VAR,[VAR="no, unknown" 45 AC_LANG_SAVE 46 AC_LANG_C 47 ac_save_[]FLAGS="$[]FLAGS" 48for ac_arg dnl 49in "-verbose -w0 -std1 % m4_ifval($2,$2,-option)" dnl OSF 50 # 51do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` 52 AC_TRY_COMPILE([],[return 0;], 53 [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) 54done 55 FLAGS="$ac_save_[]FLAGS" 56 AC_LANG_RESTORE 57]) 58case ".$VAR" in 59 .ok|.ok,*) m4_ifvaln($3,$3) ;; 60 .|.no|.no,*) m4_ifvaln($4,$4) ;; 61 *) m4_ifvaln($3,$3,[ 62 if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null 63 then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR]) 64 else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"]) 65 m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR" 66 fi ]) ;; 67esac 68AS_VAR_POPDEF([VAR])dnl 69AS_VAR_POPDEF([FLAGS])dnl 70]) 71 72dnl the only difference - the LANG selection... and the default FLAGS 73 74AC_DEFUN([AX_CXXFLAGS_OSF_OPTION_OLD], [dnl 75AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl 76AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_osf_option_$2])dnl 77AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for osf/cc m4_ifval($2,$2,-option)], 78VAR,[VAR="no, unknown" 79 AC_LANG_SAVE 80 AC_LANG_CPLUSPLUS 81 ac_save_[]FLAGS="$[]FLAGS" 82for ac_arg dnl 83in "-verbose -w0 -std1 % m4_ifval($2,$2,-option)" dnl OSF 84 # 85do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` 86 AC_TRY_COMPILE([],[return 0;], 87 [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) 88done 89 FLAGS="$ac_save_[]FLAGS" 90 AC_LANG_RESTORE 91]) 92case ".$VAR" in 93 .ok|.ok,*) m4_ifvaln($3,$3) ;; 94 .|.no|.no,*) m4_ifvaln($4,$4) ;; 95 *) m4_ifvaln($3,$3,[ 96 if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null 97 then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR]) 98 else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"]) 99 m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR" 100 fi ]) ;; 101esac 102AS_VAR_POPDEF([VAR])dnl 103AS_VAR_POPDEF([FLAGS])dnl 104]) 105 106dnl ------------------------------------------------------------------------ 107 108AC_DEFUN([AX_CFLAGS_OSF_OPTION_NEW], [dnl 109AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl 110AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_osf_option_$1])dnl 111AC_CACHE_CHECK([m4_ifval($2,$2,FLAGS) for osf/cc m4_ifval($1,$1,-option)], 112VAR,[VAR="no, unknown" 113 AC_LANG_SAVE 114 AC_LANG_C 115 ac_save_[]FLAGS="$[]FLAGS" 116for ac_arg dnl 117in "-verbose -w0 -std1 % m4_ifval($1,$1,-option)" dnl OSF 118 # 119do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` 120 AC_TRY_COMPILE([],[return 0;], 121 [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) 122done 123 FLAGS="$ac_save_[]FLAGS" 124 AC_LANG_RESTORE 125]) 126case ".$VAR" in 127 .ok|.ok,*) m4_ifvaln($3,$3) ;; 128 .|.no|.no,*) m4_ifvaln($4,$4) ;; 129 *) m4_ifvaln($3,$3,[ 130 if echo " $[]m4_ifval($2,$2,FLAGS) " | grep " $VAR " 2>&1 >/dev/null 131 then AC_RUN_LOG([: m4_ifval($2,$2,FLAGS) does contain $VAR]) 132 else AC_RUN_LOG([: m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR"]) 133 m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR" 134 fi ]) ;; 135esac 136AS_VAR_POPDEF([VAR])dnl 137AS_VAR_POPDEF([FLAGS])dnl 138]) 139 140dnl the only difference - the LANG selection... and the default FLAGS 141 142AC_DEFUN([AX_CXXFLAGS_OSF_OPTION_NEW], [dnl 143AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl 144AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_osf_option_$1])dnl 145AC_CACHE_CHECK([m4_ifval($2,$2,FLAGS) for osf/cc m4_ifval($1,$1,-option)], 146VAR,[VAR="no, unknown" 147 AC_LANG_SAVE 148 AC_LANG_CPLUSPLUS 149 ac_save_[]FLAGS="$[]FLAGS" 150for ac_arg dnl 151in "-verbose -w0 -std1 % m4_ifval($1,$1,-option)" dnl OSF 152 # 153do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` 154 AC_TRY_COMPILE([],[return 0;], 155 [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) 156done 157 FLAGS="$ac_save_[]FLAGS" 158 AC_LANG_RESTORE 159]) 160case ".$VAR" in 161 .ok|.ok,*) m4_ifvaln($3,$3) ;; 162 .|.no|.no,*) m4_ifvaln($4,$4) ;; 163 *) m4_ifvaln($3,$3,[ 164 if echo " $[]m4_ifval($2,$2,FLAGS) " | grep " $VAR " 2>&1 >/dev/null 165 then AC_RUN_LOG([: m4_ifval($2,$2,FLAGS) does contain $VAR]) 166 else AC_RUN_LOG([: m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR"]) 167 m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR" 168 fi ]) ;; 169esac 170AS_VAR_POPDEF([VAR])dnl 171AS_VAR_POPDEF([FLAGS])dnl 172]) 173 174AC_DEFUN([AX_CFLAGS_OSF_OPTION],[ifelse(regexp([$2],[-]),-1, 175[AX_CFLAGS_OSF_OPTION_NEW($@)],[AX_CFLAGS_OSF_OPTION_OLD($@)])]) 176 177AC_DEFUN([AX_CXXFLAGS_OSF_OPTION],[ifelse(regexp([$2],[-]),-1, 178[AX_CXXFLAGS_OSF_OPTION_NEW($@)],[AX_CXXFLAGS_OSF_OPTION_OLD($@)])]) 179