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-rw-r--r--Build/source/utils/chktex/chktex-1.6.6/m4/vl_prog_cc_warnings.m4111
1 files changed, 111 insertions, 0 deletions
diff --git a/Build/source/utils/chktex/chktex-1.6.6/m4/vl_prog_cc_warnings.m4 b/Build/source/utils/chktex/chktex-1.6.6/m4/vl_prog_cc_warnings.m4
new file mode 100644
index 00000000000..fe2f6145450
--- /dev/null
+++ b/Build/source/utils/chktex/chktex-1.6.6/m4/vl_prog_cc_warnings.m4
@@ -0,0 +1,111 @@
+AC_DEFUN([VL_PROG_CC_WARNINGS], [
+ ansi=$1
+ if test -z "$ansi"; then
+ msg="for C compiler warning flags"
+ else
+ msg="for C compiler warning and ANSI conformance flags"
+ fi
+ AC_CACHE_CHECK($msg, vl_cv_prog_cc_warnings, [
+ if test -n "$CC"; then
+ cat > conftest.c <<EOF
+int main(int argc, char **argv) { return 0; }
+EOF
+
+ dnl GCC
+ if test "$GCC" = "yes"; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="-Wall"
+ else
+ vl_cv_prog_cc_warnings="-Wall -ansi -pedantic"
+ fi
+
+ dnl Most compilers print some kind of a version string with some command
+ dnl line options (often "-V"). The version string should be checked
+ dnl before doing a test compilation run with compiler-specific flags.
+ dnl This is because some compilers (like the Cray compiler) only
+ dnl produce a warning message for unknown flags instead of returning
+ dnl an error, resulting in a false positive. Also, compilers may do
+ dnl erratic things when invoked with flags meant for a different
+ dnl compiler.
+
+ dnl Solaris C compiler
+ elif $CC -V 2>&1 | grep -i "WorkShop" > /dev/null 2>&1 &&
+ $CC -c -v -Xc conftest.c > /dev/null 2>&1 &&
+ test -f conftest.o; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="-v"
+ else
+ vl_cv_prog_cc_warnings="-v -Xc"
+ fi
+
+ dnl Digital Unix C compiler
+ elif $CC -V 2>&1 | grep -i "Digital UNIX Compiler" > /dev/null 2>&1 &&
+ $CC -c -verbose -w0 -warnprotos -std1 conftest.c > /dev/null 2>&1 &&
+ test -f conftest.o; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos"
+ else
+ vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos -std1"
+ fi
+
+ dnl C for AIX Compiler
+ elif $CC 2>&1 | grep -i "C for AIX Compiler" > /dev/null 2>&1 &&
+ $CC -c -qlanglvl=ansi -qinfo=all conftest.c > /dev/null 2>&1 &&
+ test -f conftest.o; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd"
+ else
+ vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd -qlanglvl=ansi"
+ fi
+
+ dnl IRIX C compiler
+ elif $CC -version 2>&1 | grep -i "MIPSpro Compilers" > /dev/null 2>&1 &&
+ $CC -c -fullwarn -ansi -ansiE conftest.c > /dev/null 2>&1 &&
+ test -f conftest.o; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="-fullwarn"
+ else
+ vl_cv_prog_cc_warnings="-fullwarn -ansi -ansiE"
+ fi
+
+ dnl HP-UX C compiler
+ elif what $CC 2>&1 | grep -i "HP C Compiler" > /dev/null 2>&1 &&
+ $CC -c -Aa +w1 conftest.c > /dev/null 2>&1 &&
+ test -f conftest.o; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="+w1"
+ else
+ vl_cv_prog_cc_warnings="+w1 -Aa"
+ fi
+
+ dnl The NEC SX-5 (Super-UX 10) C compiler
+ elif $CC -V 2>&1 | grep "/SX" > /dev/null 2>&1 &&
+ $CC -c -pvctl[,]fullmsg -Xc conftest.c > /dev/null 2>&1 &&
+ test -f conftest.o; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="-pvctl[,]fullmsg"
+ else
+ vl_cv_prog_cc_warnings="-pvctl[,]fullmsg -Xc"
+ fi
+
+ dnl The Cray C compiler (Unicos)
+ elif $CC -V 2>&1 | grep -i "Cray" > /dev/null 2>&1 &&
+ $CC -c -h msglevel 2 conftest.c > /dev/null 2>&1 &&
+ test -f conftest.o; then
+ if test -z "$ansi"; then
+ vl_cv_prog_cc_warnings="-h msglevel 2"
+ else
+ vl_cv_prog_cc_warnings="-h msglevel 2 -h conform"
+ fi
+
+ fi
+ rm -f conftest.*
+ fi
+ if test -n "$vl_cv_prog_cc_warnings"; then
+ CFLAGS="$CFLAGS $vl_cv_prog_cc_warnings"
+ else
+ vl_cv_prog_cc_warnings="unknown"
+ fi
+ ])
+])dnl
+