diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index c943725..effdffc 100644 --- a/configure.ac +++ b/configure.ac @@ -43,7 +43,46 @@ AC_ARG_ENABLE(glob, AS_HELP_STRING(--enable-glob, [Use glob(3) from libc])) dnl Checks for libraries. dnl Checks for header files. -AC_CHECK_HEADERS(alloca.h) +AC_CHECK_HEADERS(alloca.h paths.h) + +dnl Check for declarations +AC_CHECK_DECL([_PATH_BSHELL],,AC_DEFINE_UNQUOTED([_PATH_BSHELL], "/bin/sh", [Define to system shell path]),[ +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +]) +AC_CHECK_DECL([_PATH_DEVNULL],,AC_DEFINE_UNQUOTED([_PATH_DEVNULL], "/dev/null", [Define to devnull device node path]),[ +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +]) +AC_CHECK_DECL([_PATH_TTY],,AC_DEFINE_UNQUOTED([_PATH_TTY], "/dev/tty", [Define to tty device node path]),[ +#ifdef HAVE_PATHS_H +#include <paths.h> +#endif +]) + +dnl Some systems lack isblank +AC_CHECK_DECLS([isblank],,,[#include <ctype.h>]) + +dnl Check for sizes of types +AC_CHECK_SIZEOF([intmax_t]) +AC_CHECK_SIZEOF([long long int]) + +dnl Select a fallback format string for intmax_t in case we don't find PRIdMAX +if test "x$ac_cv_sizeof_intmax_t" = "x$ac_cv_sizeof_long_long_int"; then + intmax_fstr="lld" +else + intmax_fstr="jd" +fi + +dnl Check for PRIdMAX and define it to a fallback if not found +AC_CHECK_DECL([PRIdMAX],, + [AC_DEFINE_UNQUOTED([PRIdMAX], "$intmax_fstr", + [Define to printf format string for intmax_t])], + [ +#include <inttypes.h> +]) dnl Checks for library functions. AC_CHECK_FUNCS(bsearch faccessat getpwnam getrlimit imaxdiv isalpha killpg \ |