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-rwxr-xr-xconfigure237
1 files changed, 188 insertions, 49 deletions
diff --git a/configure b/configure
index a29752859..bf832ba87 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in 8291fd8.
+# From configure.ac 045a895.
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69.
#
@@ -4603,6 +4603,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
# -Wunused-parameter -Wunused-but-set-parameter unused parameters
# -Wunused-macros unused macro warnings, but it also enable unused parameters
# -Wstrict-prototypes show warning in grammar.y
+# -wdiscarded-qualifiers show different const removal
# attributes suggestion
# -Wsuggest-attribute=const -Wsuggest-attribute=format -Wsuggest-attribute=pure
@@ -6986,11 +6987,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
#AC_CHECK_COMPILER_WFLAG(cast-align)
+#AC_CHECK_COMPILER_WFLAG(logical-op) # some useless warnings
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wlogical-op" >&5
-$as_echo_n "checking whether $CC supports -Wlogical-op... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wnested-externs" >&5
+$as_echo_n "checking whether $CC supports -Wnested-externs... " >&6; }
OLD_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Werror -Wlogical-op"
+ CFLAGS="$CFLAGS -Werror -Wnested-externs"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo;
@@ -6999,12 +7001,12 @@ if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wlogical-op"
+ CFLAGS="$OLD_CFLAGS -Wnested-externs"
# Optionally, run a test
if test "x" != "x"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wlogical-op" >&5
-$as_echo_n "checking whether $CC can actually use -Wlogical-op... " >&6; }
- CFLAGS="$OLD_CFLAGS -Werror -Wlogical-op"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wnested-externs" >&5
+$as_echo_n "checking whether $CC can actually use -Wnested-externs... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Wnested-externs"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -7018,7 +7020,7 @@ $as_echo "no" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wlogical-op"
+ CFLAGS="$OLD_CFLAGS -Wnested-externs"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -7036,10 +7038,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wnested-externs" >&5
-$as_echo_n "checking whether $CC supports -Wnested-externs... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wold-style-definition" >&5
+$as_echo_n "checking whether $CC supports -Wold-style-definition... " >&6; }
OLD_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Werror -Wnested-externs"
+ CFLAGS="$CFLAGS -Werror -Wold-style-definition"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo;
@@ -7048,12 +7050,12 @@ if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wnested-externs"
+ CFLAGS="$OLD_CFLAGS -Wold-style-definition"
# Optionally, run a test
if test "x" != "x"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wnested-externs" >&5
-$as_echo_n "checking whether $CC can actually use -Wnested-externs... " >&6; }
- CFLAGS="$OLD_CFLAGS -Werror -Wnested-externs"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wold-style-definition" >&5
+$as_echo_n "checking whether $CC can actually use -Wold-style-definition... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Wold-style-definition"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -7067,7 +7069,7 @@ $as_echo "no" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wnested-externs"
+ CFLAGS="$OLD_CFLAGS -Wold-style-definition"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -7085,10 +7087,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wold-style-definition" >&5
-$as_echo_n "checking whether $CC supports -Wold-style-definition... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Woverlength-strings" >&5
+$as_echo_n "checking whether $CC supports -Woverlength-strings... " >&6; }
OLD_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Werror -Wold-style-definition"
+ CFLAGS="$CFLAGS -Werror -Woverlength-strings"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo;
@@ -7097,12 +7099,12 @@ if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wold-style-definition"
+ CFLAGS="$OLD_CFLAGS -Woverlength-strings"
# Optionally, run a test
if test "x" != "x"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wold-style-definition" >&5
-$as_echo_n "checking whether $CC can actually use -Wold-style-definition... " >&6; }
- CFLAGS="$OLD_CFLAGS -Werror -Wold-style-definition"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Woverlength-strings" >&5
+$as_echo_n "checking whether $CC can actually use -Woverlength-strings... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Woverlength-strings"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -7116,7 +7118,7 @@ $as_echo "no" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wold-style-definition"
+ CFLAGS="$OLD_CFLAGS -Woverlength-strings"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -7134,10 +7136,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Woverlength-strings" >&5
-$as_echo_n "checking whether $CC supports -Woverlength-strings... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wredundant-decls" >&5
+$as_echo_n "checking whether $CC supports -Wredundant-decls... " >&6; }
OLD_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Werror -Woverlength-strings"
+ CFLAGS="$CFLAGS -Werror -Wredundant-decls"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo;
@@ -7146,12 +7148,12 @@ if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Woverlength-strings"
+ CFLAGS="$OLD_CFLAGS -Wredundant-decls"
# Optionally, run a test
if test "x" != "x"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Woverlength-strings" >&5
-$as_echo_n "checking whether $CC can actually use -Woverlength-strings... " >&6; }
- CFLAGS="$OLD_CFLAGS -Werror -Woverlength-strings"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wredundant-decls" >&5
+$as_echo_n "checking whether $CC can actually use -Wredundant-decls... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Wredundant-decls"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -7165,7 +7167,7 @@ $as_echo "no" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Woverlength-strings"
+ CFLAGS="$OLD_CFLAGS -Wredundant-decls"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -7183,10 +7185,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wredundant-decls" >&5
-$as_echo_n "checking whether $CC supports -Wredundant-decls... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wcast-qual" >&5
+$as_echo_n "checking whether $CC supports -Wcast-qual... " >&6; }
OLD_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Werror -Wredundant-decls"
+ CFLAGS="$CFLAGS -Werror -Wcast-qual"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo;
@@ -7195,12 +7197,12 @@ if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wredundant-decls"
+ CFLAGS="$OLD_CFLAGS -Wcast-qual"
# Optionally, run a test
if test "x" != "x"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wredundant-decls" >&5
-$as_echo_n "checking whether $CC can actually use -Wredundant-decls... " >&6; }
- CFLAGS="$OLD_CFLAGS -Werror -Wredundant-decls"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wcast-qual" >&5
+$as_echo_n "checking whether $CC can actually use -Wcast-qual... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Wcast-qual"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -7214,7 +7216,7 @@ $as_echo "no" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wredundant-decls"
+ CFLAGS="$OLD_CFLAGS -Wcast-qual"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -7232,10 +7234,10 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wcast-qual" >&5
-$as_echo_n "checking whether $CC supports -Wcast-qual... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wmisleading-indentation" >&5
+$as_echo_n "checking whether $CC supports -Wmisleading-indentation... " >&6; }
OLD_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -Werror -Wcast-qual"
+ CFLAGS="$CFLAGS -Werror -Wmisleading-indentation"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo;
@@ -7244,12 +7246,12 @@ if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wcast-qual"
+ CFLAGS="$OLD_CFLAGS -Wmisleading-indentation"
# Optionally, run a test
if test "x" != "x"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wcast-qual" >&5
-$as_echo_n "checking whether $CC can actually use -Wcast-qual... " >&6; }
- CFLAGS="$OLD_CFLAGS -Werror -Wcast-qual"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wmisleading-indentation" >&5
+$as_echo_n "checking whether $CC can actually use -Wmisleading-indentation... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Wmisleading-indentation"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -7263,7 +7265,56 @@ $as_echo "no" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
- CFLAGS="$OLD_CFLAGS -Wcast-qual"
+ CFLAGS="$OLD_CFLAGS -Wmisleading-indentation"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ fi
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wnull-dereference" >&5
+$as_echo_n "checking whether $CC supports -Wnull-dereference... " >&6; }
+ OLD_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Werror -Wnull-dereference"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+int foo;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ CFLAGS="$OLD_CFLAGS -Wnull-dereference"
+ # Optionally, run a test
+ if test "x" != "x"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wnull-dereference" >&5
+$as_echo_n "checking whether $CC can actually use -Wnull-dereference... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Wnull-dereference"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ CFLAGS="$OLD_CFLAGS -Wnull-dereference"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -7545,6 +7596,94 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wno-suggest-attribute=format" >&5
+$as_echo_n "checking whether $CC supports -Wno-suggest-attribute=format... " >&6; }
+ OLD_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Werror -Wno-suggest-attribute=format"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+int foo;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ # Recent versions of gcc don't fail if -Wno-foo is not recognized
+ # (unless there are also other warnings), so we also check for -Wfoo
+ # which always fails if not supported
+ CFLAGS="$OLD_CFLAGS -Werror -Wsuggest-attribute=format"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+int foo;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ CFLAGS="$OLD_CFLAGS -Wno-suggest-attribute=format"
+ # Optionally, run a test
+ if test "x" != "x"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wno-suggest-attribute=format" >&5
+$as_echo_n "checking whether $CC can actually use -Wno-suggest-attribute=format... " >&6; }
+ CFLAGS="$OLD_CFLAGS -Werror -Wsuggest-attribute=format"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: not needed but enabled" >&5
+$as_echo "not needed but enabled" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+
+else
+
+ CFLAGS="$OLD_CFLAGS -Werror -Wno-suggest-attribute=format"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ CFLAGS="$OLD_CFLAGS -Wno-suggest-attribute=format"
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ fi
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ CFLAGS="$OLD_CFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+
# Certain versions of gcc make -Wshadow completely useless by making it flood
# you with unnecessary warnings <https://lkml.org/lkml/2006/11/28/239>
# Let's check if we can really use it