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| author | Jim Meyering <jim@meyering.net> | 1998-08-16 03:55:36 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1998-08-16 03:55:36 +0000 |
| commit | 919b80538057b7aae8af23f64380005697b216de (patch) | |
| tree | ec8330b5895d0b72067dea06aaedeff188b95a1d /m4 | |
| parent | 0e48a577b549c96d6dd53706a9248832cb2d47a5 (diff) | |
| download | coreutils-919b80538057b7aae8af23f64380005697b216de.tar.xz | |
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Diffstat (limited to 'm4')
| -rw-r--r-- | m4/check-type.m4 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/m4/check-type.m4 b/m4/check-type.m4 new file mode 100644 index 000000000..3eb9dbb23 --- /dev/null +++ b/m4/check-type.m4 @@ -0,0 +1,28 @@ +#serial 1 + +dnl Just like AC_CHECK_TYPE from autoconf-2.12, but also checks in unistd.h +dnl on systems that have it. Fujitsu UXP/V needs this for ssize_t. + +undefine([AC_CHECK_TYPE]) +dnl AC_CHECK_TYPE(TYPE, DEFAULT) +AC_DEFUN(AC_CHECK_TYPE, +[AC_REQUIRE([AC_HEADER_STDC])dnl +AC_CHECK_HEADERS(unistd.h) +AC_MSG_CHECKING(for $1) +AC_CACHE_VAL(ac_cv_type_$1, +[AC_EGREP_CPP(dnl +changequote(<<,>>)dnl +<<$1[^a-zA-Z_0-9]>>dnl +changequote([,]), [#include <sys/types.h> +#if STDC_HEADERS +# include <stdlib.h> +# include <stddef.h> +#endif +#if HAVE_UNISTD_H +# include <unistd.h> +#endif], ac_cv_type_$1=yes, ac_cv_type_$1=no)])dnl +AC_MSG_RESULT($ac_cv_type_$1) +if test $ac_cv_type_$1 = no; then + AC_DEFINE($1, $2) +fi +]) |