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gcc-isystem.m4 @ 9da42fb

4.115

Last change on this file since 9da42fb was 9b4422a2, checked in by Joel Sherrill <joel.sherrill@…>, on 05/03/12 at 15:09:24

Remove All CVS Id Strings Possible Using a Script

Script does what is expected and tries to do it as
smartly as possible.

+ remove occurrences of two blank comment lines

next to each other after Id string line removed.

+ remove entire comment blocks which only exited to

contain CVS Ids

+ If the processing left a blank line at the top of

a file, it was removed.

File size: 464 bytes

Line
1	dnl Check whether the gcc accepts -isystem
2	dnl
3
4	AC_DEFUN([RTEMS_GCC_ISYSTEM],
5	[AC_REQUIRE([RTEMS_PROG_CC])
6	AC_CACHE_CHECK(whether $CC accepts -isystem,rtems_cv_gcc_isystem,
7	[
8	rtems_cv_gcc_isystem=no
9	if test x"$GCC" = x"yes"; then
10	cat << EOF > conftest.h
11	int conftest123();
12	EOF
13	cat << EOF > conftest.c
14	#include <conftest.h>
15	int conftest123() {}
16	EOF
17	if test -z "`${CC} -isystem./ -c conftest.c 2>&1`";then
18	rtems_cv_gcc_isystem=yes
19	fi
20	fi
21	rm -f conftest*
22	])])

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