Jean-Baptiste Queru | b13da9d | 2009-07-17 17:53:22 -0700 | [diff] [blame^] | 1 | dnl aclocal.m4 for ICU |
| 2 | dnl Copyright (c) 1999-2007, International Business Machines Corporation and |
| 3 | dnl others. All Rights Reserved. |
| 4 | dnl Stephen F. Booth |
| 5 | |
| 6 | dnl @TOP@ |
| 7 | |
| 8 | dnl ICU_CHECK_MH_FRAG |
| 9 | AC_DEFUN(ICU_CHECK_MH_FRAG, [ |
| 10 | AC_CACHE_CHECK( |
| 11 | [which Makefile fragment to use], |
| 12 | [icu_cv_host_frag], |
| 13 | [ |
| 14 | case "${host}" in |
| 15 | *-*-solaris*) |
| 16 | if test "$GCC" = yes; then |
| 17 | icu_cv_host_frag=mh-solaris-gcc |
| 18 | else |
| 19 | icu_cv_host_frag=mh-solaris |
| 20 | fi ;; |
| 21 | alpha*-*-linux-gnu) |
| 22 | if test "$GCC" = yes; then |
| 23 | icu_cv_host_frag=mh-alpha-linux-gcc |
| 24 | else |
| 25 | icu_cv_host_frag=mh-alpha-linux-cc |
| 26 | fi ;; |
| 27 | powerpc*-*-linux*) |
| 28 | if test "$GCC" = yes; then |
| 29 | icu_cv_host_frag=mh-linux |
| 30 | else |
| 31 | icu_cv_host_frag=mh-linux-va |
| 32 | fi ;; |
| 33 | *-*-linux*|*-pc-gnu) icu_cv_host_frag=mh-linux ;; |
| 34 | *-*-cygwin|*-*-mingw32) |
| 35 | if test "$GCC" = yes; then |
| 36 | AC_TRY_COMPILE([ |
| 37 | #ifndef __MINGW32__ |
| 38 | #error This is not MinGW |
| 39 | #endif], [], icu_cv_host_frag=mh-mingw, icu_cv_host_frag=mh-cygwin) |
| 40 | else |
| 41 | icu_cv_host_frag=mh-cygwin-msvc |
| 42 | fi ;; |
| 43 | *-*-*bsd*|*-*-dragonfly*) icu_cv_host_frag=mh-bsd-gcc ;; |
| 44 | *-*-aix*) |
| 45 | if test "$GCC" = yes; then |
| 46 | icu_cv_host_frag=mh-aix-gcc |
| 47 | else |
| 48 | icu_cv_host_frag=mh-aix-va |
| 49 | fi ;; |
| 50 | *-*-hpux*) |
| 51 | if test "$GCC" = yes; then |
| 52 | icu_cv_host_frag=mh-hpux-gcc |
| 53 | else |
| 54 | case "$CXX" in |
| 55 | *aCC) icu_cv_host_frag=mh-hpux-acc ;; |
| 56 | esac |
| 57 | fi ;; |
| 58 | *-*ibm-openedition*|*-*-os390*) icu_cv_host_frag=mh-os390 ;; |
| 59 | *-*-os400*) icu_cv_host_frag=mh-os400 ;; |
| 60 | *-apple-rhapsody*) icu_cv_host_frag=mh-darwin ;; |
| 61 | *-apple-darwin*) icu_cv_host_frag=mh-darwin ;; |
| 62 | *-*-beos) icu_cv_host_frag=mh-beos ;; |
| 63 | *-*-irix*) icu_cv_host_frag=mh-irix ;; |
| 64 | *-dec-osf*) icu_cv_host_frag=mh-alpha-osf ;; |
| 65 | *-*-nto*) icu_cv_host_frag=mh-qnx ;; |
| 66 | *-ncr-*) icu_cv_host_frag=mh-mpras ;; |
| 67 | *) icu_cv_host_frag=mh-unknown ;; |
| 68 | esac |
| 69 | ] |
| 70 | ) |
| 71 | ]) |
| 72 | |
| 73 | dnl ICU_CONDITIONAL - similar example taken from Automake 1.4 |
| 74 | AC_DEFUN(ICU_CONDITIONAL, |
| 75 | [AC_SUBST($1_TRUE) |
| 76 | if $2; then |
| 77 | $1_TRUE= |
| 78 | else |
| 79 | $1_TRUE='#' |
| 80 | fi]) |
| 81 | |
| 82 | dnl ICU_PROG_LINK - Make sure that the linker is usable |
| 83 | AC_DEFUN(ICU_PROG_LINK, |
| 84 | [ |
| 85 | case "${host}" in |
| 86 | *-*-cygwin*|*-*-mingw*) |
| 87 | if test "$GCC" != yes && test -n "`link --version 2>&1 | grep 'GNU coreutils'`"; then |
| 88 | AC_MSG_ERROR([link.exe is not a valid linker. Your PATH is incorrect. |
| 89 | Please follow the directions in ICU's readme.]) |
| 90 | fi;; |
| 91 | *);; |
| 92 | esac]) |
| 93 | |
| 94 | dnl AC_SEARCH_LIBS_FIRST(FUNCTION, SEARCH-LIBS [, ACTION-IF-FOUND |
| 95 | dnl [, ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) |
| 96 | dnl Search for a library defining FUNC, then see if it's not already available. |
| 97 | |
| 98 | AC_DEFUN(AC_SEARCH_LIBS_FIRST, |
| 99 | [AC_PREREQ([2.13]) |
| 100 | AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1], |
| 101 | [ac_func_search_save_LIBS="$LIBS" |
| 102 | ac_cv_search_$1="no" |
| 103 | for i in $2; do |
| 104 | LIBS="-l$i $5 $ac_func_search_save_LIBS" |
| 105 | AC_TRY_LINK_FUNC([$1], |
| 106 | [ac_cv_search_$1="-l$i" |
| 107 | break]) |
| 108 | done |
| 109 | if test "$ac_cv_search_$1" = "no"; then |
| 110 | AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"]) |
| 111 | fi |
| 112 | LIBS="$ac_func_search_save_LIBS"]) |
| 113 | if test "$ac_cv_search_$1" != "no"; then |
| 114 | test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS" |
| 115 | $3 |
| 116 | else : |
| 117 | $4 |
| 118 | fi]) |
| 119 | |
| 120 | dnl Check if we can build and use 64-bit libraries |
| 121 | AC_DEFUN(AC_CHECK_64BIT_LIBS, |
| 122 | [ |
| 123 | AC_ARG_ENABLE(64bit-libs, |
| 124 | [ --enable-64bit-libs build 64-bit libraries [default=yes]], |
| 125 | [ENABLE_64BIT_LIBS=${enableval}], |
| 126 | [ENABLE_64BIT_LIBS=yes] |
| 127 | ) |
| 128 | dnl These results can't be cached because is sets compiler flags. |
| 129 | AC_MSG_CHECKING([for 64-bit executable support]) |
| 130 | if test "$ENABLE_64BIT_LIBS" != no; then |
| 131 | if test "$GCC" = yes; then |
| 132 | dnl First we check that gcc already compiles as 64-bit |
| 133 | if test -n "`$CXX -dumpspecs 2>&1 && $CC -dumpspecs 2>&1 | grep -v __LP64__`"; then |
| 134 | ENABLE_64BIT_LIBS=yes |
| 135 | else |
| 136 | dnl Now we check a little more forcefully. |
| 137 | dnl Maybe the compiler builds as 32-bit on a 64-bit machine. |
| 138 | OLD_CFLAGS="${CFLAGS}" |
| 139 | OLD_CXXFLAGS="${CXXFLAGS}" |
| 140 | CFLAGS="${CFLAGS} -m64" |
| 141 | CXXFLAGS="${CXXFLAGS} -m64" |
| 142 | AC_TRY_RUN(int main(void) {return 0;}, |
| 143 | ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=no) |
| 144 | if test "$ENABLE_64BIT_LIBS" = no; then |
| 145 | # Nope. We're on a 32-bit machine with a 32-bit compiler. |
| 146 | CFLAGS="${OLD_CFLAGS}" |
| 147 | CXXFLAGS="${OLD_CXXFLAGS}" |
| 148 | fi |
| 149 | fi |
| 150 | else |
| 151 | case "${host}" in |
| 152 | sparc*-*-solaris*) |
| 153 | SPARCV9=`isainfo -n 2>&1 | grep sparcv9` |
| 154 | SOL64=`$CXX -xarch=v9 2>&1 && $CC -xarch=v9 2>&1 | grep -v usage:` |
| 155 | if test -z "$SOL64" && test -n "$SPARCV9"; then |
| 156 | CFLAGS="${CFLAGS} -xtarget=ultra -xarch=v9" |
| 157 | CXXFLAGS="${CXXFLAGS} -xtarget=ultra -xarch=v9" |
| 158 | LDFLAGS="${LDFLAGS} -xtarget=ultra -xarch=v9" |
| 159 | ENABLE_64BIT_LIBS=yes |
| 160 | else |
| 161 | ENABLE_64BIT_LIBS=no |
| 162 | fi |
| 163 | ;; |
| 164 | i386-*-solaris*) |
| 165 | AMD64=`isainfo -n 2>&1 | grep amd64` |
| 166 | # The new compiler option |
| 167 | SOL64=`$CXX -m64 2>&1 && $CC -m64 2>&1 | grep -v usage:` |
| 168 | if test -z "$SOL64" && test -n "$AMD64"; then |
| 169 | CFLAGS="${CFLAGS} -m64" |
| 170 | CXXFLAGS="${CXXFLAGS} -m64" |
| 171 | ENABLE_64BIT_LIBS=yes |
| 172 | else |
| 173 | # The older compiler option |
| 174 | SOL64=`$CXX -xtarget=generic64 2>&1 && $CC -xtarget=generic64 2>&1 | grep -v usage:` |
| 175 | if test -z "$SOL64" && test -n "$AMD64"; then |
| 176 | CFLAGS="${CFLAGS} -xtarget=generic64" |
| 177 | CXXFLAGS="${CXXFLAGS} -xtarget=generic64" |
| 178 | ENABLE_64BIT_LIBS=yes |
| 179 | else |
| 180 | ENABLE_64BIT_LIBS=no |
| 181 | fi |
| 182 | fi |
| 183 | ;; |
| 184 | ia64-*-linux*) |
| 185 | # check for ecc/ecpc compiler support |
| 186 | if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Intel`"; then |
| 187 | if test -n "`$CXX --help 2>&1 && $CC --help 2>&1 | grep -v Itanium`"; then |
| 188 | ENABLE_64BIT_LIBS=yes |
| 189 | else |
| 190 | ENABLE_64BIT_LIBS=no |
| 191 | fi |
| 192 | else |
| 193 | # unknown |
| 194 | ENABLE_64BIT_LIBS=no |
| 195 | fi |
| 196 | ;; |
| 197 | *-*-cygwin) |
| 198 | dnl vcvarsamd64.bat should have been used to enable 64-bit builds. |
| 199 | dnl We only do this check to display the correct answer. |
| 200 | if test -n "`$CXX -help 2>&1 | grep 'for x64'`"; then |
| 201 | ENABLE_64BIT_LIBS=yes |
| 202 | else |
| 203 | # unknown |
| 204 | ENABLE_64BIT_LIBS=no |
| 205 | fi |
| 206 | ;; |
| 207 | *-*-aix*|powerpc64-*-linux*) |
| 208 | OLD_CFLAGS="${CFLAGS}" |
| 209 | OLD_CXXFLAGS="${CXXFLAGS}" |
| 210 | OLD_LDFLAGS="${LDFLAGS}" |
| 211 | CFLAGS="${CFLAGS} -q64" |
| 212 | CXXFLAGS="${CXXFLAGS} -q64" |
| 213 | LDFLAGS="${LDFLAGS} -q64" |
| 214 | AC_TRY_RUN(int main(void) {return 0;}, |
| 215 | ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=no) |
| 216 | if test "$ENABLE_64BIT_LIBS" = no; then |
| 217 | CFLAGS="${OLD_CFLAGS}" |
| 218 | CXXFLAGS="${OLD_CXXFLAGS}" |
| 219 | LDFLAGS="${OLD_LDFLAGS}" |
| 220 | else |
| 221 | case "${host}" in |
| 222 | *-*-aix*) |
| 223 | ARFLAGS="${ARFLAGS} -X64" |
| 224 | esac |
| 225 | fi |
| 226 | ;; |
| 227 | *-*-hpux*) |
| 228 | dnl First we try the newer +DD64, if that doesn't work, |
| 229 | dnl try other options. |
| 230 | |
| 231 | OLD_CFLAGS="${CFLAGS}" |
| 232 | OLD_CXXFLAGS="${CXXFLAGS}" |
| 233 | CFLAGS="${CFLAGS} +DD64" |
| 234 | CXXFLAGS="${CXXFLAGS} +DD64" |
| 235 | AC_TRY_RUN(int main(void) {return 0;}, |
| 236 | ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=no) |
| 237 | if test "$ENABLE_64BIT_LIBS" = no; then |
| 238 | CFLAGS="${OLD_CFLAGS}" |
| 239 | CXXFLAGS="${OLD_CXXFLAGS}" |
| 240 | CFLAGS="${CFLAGS} +DA2.0W" |
| 241 | CXXFLAGS="${CXXFLAGS} +DA2.0W" |
| 242 | AC_TRY_RUN(int main(void) {return 0;}, |
| 243 | ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=no) |
| 244 | if test "$ENABLE_64BIT_LIBS" = no; then |
| 245 | CFLAGS="${OLD_CFLAGS}" |
| 246 | CXXFLAGS="${OLD_CXXFLAGS}" |
| 247 | fi |
| 248 | fi |
| 249 | ;; |
| 250 | *-*ibm-openedition*|*-*-os390*) |
| 251 | OLD_CFLAGS="${CFLAGS}" |
| 252 | OLD_CXXFLAGS="${CXXFLAGS}" |
| 253 | OLD_LDFLAGS="${LDFLAGS}" |
| 254 | CFLAGS="${CFLAGS} -Wc,lp64" |
| 255 | CXXFLAGS="${CXXFLAGS} -Wc,lp64" |
| 256 | LDFLAGS="${LDFLAGS} -Wl,lp64" |
| 257 | AC_TRY_RUN(int main(void) {return 0;}, |
| 258 | ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=no) |
| 259 | if test "$ENABLE_64BIT_LIBS" = no; then |
| 260 | CFLAGS="${OLD_CFLAGS}" |
| 261 | CXXFLAGS="${OLD_CXXFLAGS}" |
| 262 | LDFLAGS="${OLD_LDFLAGS}" |
| 263 | fi |
| 264 | ;; |
| 265 | *) |
| 266 | ENABLE_64BIT_LIBS=no |
| 267 | ;; |
| 268 | esac |
| 269 | fi |
| 270 | else |
| 271 | if test "$GCC" = yes; then |
| 272 | OLD_CFLAGS="${CFLAGS}" |
| 273 | OLD_CXXFLAGS="${CXXFLAGS}" |
| 274 | CFLAGS="${CFLAGS} -m32" |
| 275 | CXXFLAGS="${CXXFLAGS} -m32" |
| 276 | AC_TRY_RUN(int main(void) {return 0;}, |
| 277 | ENABLE_64BIT_LIBS=no, ENABLE_64BIT_LIBS=yes, ENABLE_64BIT_LIBS=yes) |
| 278 | if test "$ENABLE_64BIT_LIBS" = yes; then |
| 279 | CFLAGS="${OLD_CFLAGS}" |
| 280 | CXXFLAGS="${OLD_CXXFLAGS}" |
| 281 | fi |
| 282 | fi |
| 283 | fi |
| 284 | dnl Individual tests that fail should reset their own flags. |
| 285 | AC_MSG_RESULT($ENABLE_64BIT_LIBS) |
| 286 | ]) |
| 287 | |
| 288 | dnl Strict compilation options. |
| 289 | AC_DEFUN(AC_CHECK_STRICT_COMPILE, |
| 290 | [ |
| 291 | AC_MSG_CHECKING([whether strict compiling is on]) |
| 292 | AC_ARG_ENABLE(strict,[ --enable-strict compile with strict compiler options [default=no]], [ |
| 293 | if test "$enableval" = no |
| 294 | then |
| 295 | ac_use_strict_options=no |
| 296 | else |
| 297 | ac_use_strict_options=yes |
| 298 | fi |
| 299 | ], [ac_use_strict_options=no]) |
| 300 | AC_MSG_RESULT($ac_use_strict_options) |
| 301 | |
| 302 | if test "$ac_use_strict_options" = yes |
| 303 | then |
| 304 | if test "$GCC" = yes |
| 305 | then |
| 306 | CFLAGS="$CFLAGS -Wall -ansi -pedantic -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -Wno-long-long" |
| 307 | case "${host}" in |
| 308 | *-*-solaris*) |
| 309 | CFLAGS="$CFLAGS -D__STDC__=0";; |
| 310 | esac |
| 311 | else |
| 312 | case "${host}" in |
| 313 | *-*-cygwin) |
| 314 | if test "`$CC /help 2>&1 | head -c9`" = "Microsoft" |
| 315 | then |
| 316 | CFLAGS="$CFLAGS /W4" |
| 317 | fi |
| 318 | esac |
| 319 | fi |
| 320 | if test "$GXX" = yes |
| 321 | then |
| 322 | CXXFLAGS="$CXXFLAGS -W -Wall -ansi -pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long" |
| 323 | case "${host}" in |
| 324 | *-*-solaris*) |
| 325 | CXXFLAGS="$CXXFLAGS -D__STDC__=0";; |
| 326 | esac |
| 327 | else |
| 328 | case "${host}" in |
| 329 | *-*-cygwin) |
| 330 | if test "`$CXX /help 2>&1 | head -c9`" = "Microsoft" |
| 331 | then |
| 332 | CXXFLAGS="$CXXFLAGS /W4" |
| 333 | fi |
| 334 | esac |
| 335 | fi |
| 336 | fi |
| 337 | ]) |
| 338 | |
| 339 | |