Fix compile error for old versions of GCC.

Use -Wno-format-truncation only if supported by compiler.

ASTERISK-27171 #close

Change-Id: Iac0aed7a5bcaa16c21b7d62c4e4678d244c4ccb6

apps/Makefile

@@ -29,7 +29,7 @@ include $(ASTTOPDIR)/Makefile.moddir_rules
 
 $(call MOD_ADD_C,app_confbridge,$(wildcard confbridge/*.c))
 
-app_voicemail.o: _ASTCFLAGS+=-Wno-format-truncation
+app_voicemail.o: _ASTCFLAGS+=$(AST_NO_FORMAT_TRUNCATION)
 
 ifneq ($(findstring $(OSARCH), mingw32 cygwin ),)
   LIBS+= -lres_ael_share.so -lres_monitor.so -lres_speech.so

channels/Makefile

@@ -29,7 +29,7 @@ $(call MOD_ADD_C,chan_pjsip,$(wildcard pjsip/*.c))
 $(call MOD_ADD_C,chan_dahdi,$(wildcard dahdi/*.c) sig_analog.c sig_pri.c sig_ss7.c)
 $(call MOD_ADD_C,chan_misdn,misdn_config.c misdn/isdn_lib.c misdn/isdn_msg_parser.c)
 
-chan_mgcp.o: _ASTCFLAGS+=-Wno-format-truncation
+chan_mgcp.o: _ASTCFLAGS+=$(AST_NO_FORMAT_TRUNCATION)
 
 chan_misdn.o: _ASTCFLAGS+=-Imisdn
 misdn_config.o: _ASTCFLAGS+=-Imisdn

configure

@@ -701,6 +701,7 @@ BIND8_CFLAGS
 AST_RPATH
 AST_NATIVE_ARCH
 AST_SHADOW_WARNINGS
+AST_NO_FORMAT_TRUNCATION
 AST_NO_STRICT_OVERFLOW
 AST_FORTIFY_SOURCE
 AST_TRAMPOLINES
@@ -1356,7 +1357,6 @@ infodir
 docdir
 oldincludedir
 includedir
-runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -1541,7 +1541,6 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1794,15 +1793,6 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
-  -runstatedir | --runstatedir | --runstatedi | --runstated \
-  | --runstate | --runstat | --runsta | --runst | --runs \
-  | --run | --ru | --r)
-    ac_prev=runstatedir ;;
-  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
-  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
-  | --run=* | --ru=* | --r=*)
-    runstatedir=$ac_optarg ;;
-
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1940,7 +1930,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir runstatedir
+		libdir localedir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -2093,7 +2083,6 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
-  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -14927,7 +14916,7 @@ else
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -14973,7 +14962,7 @@ else
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -14997,7 +14986,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -15042,7 +15031,7 @@ else
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -15066,7 +15055,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     We can't simply define LARGE_OFF_T to be 9223372036854775807,
     since some C++ compilers masquerading as C compilers
     incorrectly reject 9223372036854775807.  */
-#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
 		       && LARGE_OFF_T % 2147483647 == 1)
 		      ? 1 : -1];
@@ -19069,6 +19058,19 @@ $as_echo "no" >&6; }
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wno-format-truncation" >&5
+$as_echo_n "checking for -Wno-format-truncation... " >&6; }
+if $(${CC} -O2 -Wno-format-truncation -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	AST_NO_FORMAT_TRUNCATION=-Wno-format-truncation
+else
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	AST_NO_FORMAT_TRUNCATION=
+fi
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wshadow" >&5
 $as_echo_n "checking for -Wshadow... " >&6; }
 if $(${CC} -Wshadow -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then

configure.ac

@@ -1252,6 +1252,16 @@ else
 fi
 AC_SUBST(AST_NO_STRICT_OVERFLOW)
 
+AC_MSG_CHECKING(for -Wno-format-truncation)
+if $(${CC} -O2 -Wno-format-truncation -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
+	AC_MSG_RESULT(yes)
+	AST_NO_FORMAT_TRUNCATION=-Wno-format-truncation
+else
+	AC_MSG_RESULT(no)
+	AST_NO_FORMAT_TRUNCATION=
+fi
+AC_SUBST(AST_NO_FORMAT_TRUNCATION)
+
 AC_MSG_CHECKING(for -Wshadow)
 if $(${CC} -Wshadow -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
 	AC_MSG_RESULT(yes)

main/Makefile

@@ -140,7 +140,7 @@ endif
 	$(CMD_PREFIX) rm $@.fix
 
 ast_expr2f.o: _ASTCFLAGS+=-Wno-unused
-cdr.o: _ASTCFLAGS+=-Wno-format-truncation
+cdr.o: _ASTCFLAGS+=$(AST_NO_FORMAT_TRUNCATION)
 
 testexpr2: ast_expr2f.c ast_expr2.c ast_expr2.h
 	$(CC) -g -c -Iinclude -DSTANDALONE ast_expr2f.c

makeopts.in

@@ -116,6 +116,7 @@ AST_ASTERISKSSL=@AST_ASTERISKSSL@
 AST_DECLARATION_AFTER_STATEMENT=@AST_DECLARATION_AFTER_STATEMENT@
 AST_TRAMPOLINES=@AST_TRAMPOLINES@
 AST_NO_STRICT_OVERFLOW=@AST_NO_STRICT_OVERFLOW@
+AST_NO_FORMAT_TRUNCATION=@AST_NO_FORMAT_TRUNCATION@
 AST_SHADOW_WARNINGS=@AST_SHADOW_WARNINGS@
 AST_NESTED_FUNCTIONS=@AST_NESTED_FUNCTIONS@
 AST_CLANG_BLOCKS=@AST_CLANG_BLOCKS@