modernize all tests to use cache and report outcome
diff --git a/configure.in b/configure.in
index 231a30c..1f7e2a8 100644
--- a/configure.in
+++ b/configure.in
@@ -5,13 +5,18 @@
AC_CONFIG_HEADER(config.h)
# checks for alternative programs
-AC_CHECKING(for --with(out)-gcc)
+AC_MSG_CHECKING(for --without-gcc)
AC_ARG_WITH(gcc, [--without-gcc never use gcc], [
case $withval in
- no) withval=cc;;
- yes) withval=gcc;;
- esac
- CC=$withval])
+ no) CC=cc
+ without_gcc=yes;;
+ yes) CC=gcc
+ without_gcc=no;;
+ *) CC=$withval
+ without_gcc=$withval;;
+ esac], [without_gcc=no])
+AC_MSG_RESULT($without_gcc)
+
AC_PROG_CC
AC_PROG_RANLIB
AC_SUBST(AR)
@@ -39,12 +44,15 @@
AC_AIX
AC_ISC_POSIX
AC_MINIX
-AC_CHECKING(for NeXT)
+
+was_it_defined=no
AC_TRY_RUN([
#ifdef _NEXT_SOURCE
main() { exit(0); }
#endif
-], AC_DEFINE(_POSIX_SOURCE))
+], AC_DEFINE(_POSIX_SOURCE) was_it_defined=yes)
+AC_MSG_CHECKING(for NeXT)
+AC_MSG_RESULT($was_it_defined)
# checks for header files
AC_HEADER_STDC
@@ -52,8 +60,11 @@
AC_HEADER_DIRENT
# checks for typedefs
-AC_CHECKING(for clock_t in time.h)
-AC_EGREP_HEADER(clock_t, time.h, , AC_DEFINE(clock_t, long))
+was_it_defined=no
+AC_MSG_CHECKING(for clock_t in time.h)
+AC_EGREP_HEADER(clock_t, time.h, was_it_defined=yes, AC_DEFINE(clock_t, long))
+AC_MSG_RESULT($was_it_defined)
+
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
@@ -138,8 +149,9 @@
AC_CHECK_LIB(inet, gethostbyname, [LIBS="-linet $LIBS"], [], -lnsl) # Sequent
AC_CHECK_LIB(socket, socket, [LIBS="-lsocket $LIBS"], [], $LIBS) # SVR4 sockets
-AC_CHECKING(for --with-readline)
+AC_MSG_CHECKING(for --with-readline)
AC_ARG_WITH(readline, [--with-readline=DIRECTORY GNU readline], [
+AC_MSG_RESULT($withval)
AC_DEFINE(WITH_READLINE)
if test ! -d "$withval"
then AC_ERROR(proper usage is --with-readline=DIRECTORY)
@@ -156,10 +168,11 @@
else LIBS="$LIBS -l$termcap"
fi
else AC_ERROR(no working termcap/termlib, do not use --with-readline)
-fi])
+fi], AC_MSG_RESULT(no))
-AC_CHECKING(for --with-thread)
+AC_MSG_CHECKING(for --with-thread)
AC_ARG_WITH(thread, [--with-thread[=DIRECTORY] make interpreter thread-safe], [
+AC_MSG_RESULT($withval)
if test -d "$withval"
then LIBS="$LIBS -L$withval"
fi
@@ -173,14 +186,15 @@
AC_CHECK_LIB(thread, thr_create, [AC_DEFINE(WITH_THREAD)
LIBS="$LIBS -lthread"
LIBOBJS="$LIBOBJS thread.o"])
-])
+], AC_MSG_RESULT(no))
# -I${DLINCLDIR} is added to the compile rule for import.o
AC_SUBST(DLINCLDIR)
DLINCLDIR=/
-AC_CHECKING(for --with-sgi-dl)
+AC_MSG_CHECKING(for --with-sgi-dl)
AC_ARG_WITH(sgi-dl, [--with-sgi-dl=DIRECTORY IRIX 4 dynamic linking], [
+AC_MSG_RESULT($withval)
AC_DEFINE(WITH_SGI_DL)
dldir=$withval
if test -d "$dldir"
@@ -188,10 +202,11 @@
else AC_ERROR(proper usage is --with-sgi-dl=DIRECTORY)
fi
DLINCLDIR=${dldir}
-LIBS="$LIBS -ldl -lmld"])
+LIBS="$LIBS -ldl -lmld"], AC_MSG_RESULT(no))
-AC_CHECKING(for --with-dl-dld)
+AC_MSG_CHECKING(for --with-dl-dld)
AC_ARG_WITH(dl-dld, [--with-dl-dld=DL_DIR,DLD_DIR GNU dynamic linking], [
+AC_MSG_RESULT($withval)
AC_DEFINE(WITH_DL_DLD)
dldir=`echo "$withval" | sed 's/,.*//'`
dlddir=`echo "$withval" | sed 's/.*,//'`
@@ -200,7 +215,7 @@
else AC_ERROR(proper usage is --with-dl-dld=DL_DIRECTORY,DLD_DIRECTORY)
fi
DLINCLDIR=${dldir}
-LIBS="$LIBS -ldl -ldld"])
+LIBS="$LIBS -ldl -ldld"], AC_MSG_RESULT(no))
# checks for library functions
AC_CHECK_FUNCS(chown clock dlopen ftime ftruncate gethostname_r gettimeofday getpeername getpgrp getpid getwd link lstat nice readlink select setgid setuid setsid setpgid setpgrp setvbuf siginterrupt symlink tcgetpgrp tcsetpgrp times truncate uname waitpid)
@@ -224,12 +239,14 @@
AC_DEFINE(HAVE_ALTZONE)
fi
-AC_CHECKING(whether sys/select.h and sys/time.h may both be included)
+was_it_defined=no
+AC_MSG_CHECKING(whether sys/select.h and sys/time.h may both be included)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/select.h>
#include <sys/time.h>
-], [;], [AC_DEFINE(SYS_SELECT_WITH_SYS_TIME)])
+], [;], [AC_DEFINE(SYS_SELECT_WITH_SYS_TIME) was_it_defined=yes])
+AC_MSG_RESULT($was_it_defined)
# checks for compiler characteristics
@@ -237,29 +254,41 @@
AC_C_CONST
-AC_CHECKING(for working volatile)
-AC_TRY_COMPILE([],[volatile int x; x = 0;],,AC_DEFINE(volatile, []))
+works=no
+AC_MSG_CHECKING(for working volatile)
+AC_TRY_COMPILE([],[volatile int x; x = 0;], works=yes, AC_DEFINE(volatile, []))
+AC_MSG_RESULT($works)
-AC_CHECKING(for working signed char)
-AC_TRY_COMPILE([], [signed char c;],,AC_DEFINE(signed, []))
+works=no
+AC_MSG_CHECKING(for working signed char)
+AC_TRY_COMPILE([], [signed char c;], works=yes, AC_DEFINE(signed, []))
+AC_MSG_RESULT($works)
-AC_CHECKING(for prototypes)
+have_prototypes=no
+AC_MSG_CHECKING(for prototypes)
AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],
AC_DEFINE(HAVE_PROTOTYPES) have_prototypes=yes)
+AC_MSG_RESULT($have_prototypes)
-AC_CHECKING(for variable length prototypes and stdarg.h)
+works=no
+AC_MSG_CHECKING(for variable length prototypes and stdarg.h)
AC_TRY_COMPILE([
#include <stdarg.h>
int foo(int x, ...) { return 0; }
], [return foo(10, 11, 12);],
-AC_DEFINE(HAVE_STDARG_PROTOTYPES))
+AC_DEFINE(HAVE_STDARG_PROTOTYPES) works=yes)
+AC_MSG_RESULT($works)
-if test "$have_prototypes"; then
-AC_CHECKING(for bad exec* prototypes)
-AC_TRY_COMPILE([#include <unistd.h>], [char **t;execve("@",t,t);], , AC_DEFINE(BAD_EXEC_PROTOTYPES))
+if test "$have_prototypes" = yes; then
+bad_prototypes=no
+AC_MSG_CHECKING(for bad exec* prototypes)
+AC_TRY_COMPILE([#include <unistd.h>], [char **t;execve("@",t,t);], ,
+ AC_DEFINE(BAD_EXEC_PROTOTYPES) bad_prototypes=yes)
+AC_MSG_RESULT($bad_prototypes)
fi
-AC_CHECKING(for bad static forward)
+bad_forward=no
+AC_MSG_CHECKING(for bad static forward)
AC_TRY_RUN([
struct s { int a; int b; };
static struct s foo;
@@ -272,16 +301,20 @@
main() {
exit(!((int)&foo == foobar()));
}
-], , AC_DEFINE(BAD_STATIC_FORWARD))
+], , AC_DEFINE(BAD_STATIC_FORWARD) bad_forward=yes)
+AC_MSG_RESULT($bad_forward)
-AC_CHECKING(whether va_list is an array)
+va_list_is_array=no
+AC_MSG_CHECKING(whether va_list is an array)
AC_TRY_COMPILE([
#ifdef HAVE_STDARG_PROTOTYPES
#include <stdarg.h>
#else
#include <varargs.h>
#endif
-], [va_list list1, list2; list1 = list2;], , AC_DEFINE(VA_LIST_IS_ARRAY))
+], [va_list list1, list2; list1 = list2;], ,
+AC_DEFINE(VA_LIST_IS_ARRAY) va_list_is_array=yes)
+AC_MSG_RESULT($va_list_is_array)
# checks for system services
# (none yet)