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BuildSystem: Really do not pass unknown-warning options to the compiler.

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When an older GCC version is called with a too new warning option, GCC exited
with an error and Asterisk was not built. Therefore, the configure script tests
the installed compiler whether it supports that warning option. If not, Asterisk
does not pass it to the installed compiler. However, some compilers (like clang)
do not exit (error) but give just a warning in such a case. Because the compiler
did not exit, Asterisk passed the unknown-warning option.

ASTERISK-27560

Change-Id: Ia9b7747f649b27ff5e9f75c3db3fee4fe7a29621
This commit is contained in:
Alexander Traud
2018-01-06 22:40:46 +01:00
parent 4eccf697e1
commit 512286e3c8
2 changed files with 6 additions and 6 deletions
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6
configure vendored
View File

@@ -18690,7 +18690,7 @@ LDFLAGS="${saved_sanitize_LDFLAGS}"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wdeclaration-after-statement support" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wdeclaration-after-statement support" >&5
$as_echo_n "checking for -Wdeclaration-after-statement support... " >&6; } $as_echo_n "checking for -Wdeclaration-after-statement support... " >&6; }
if $(${CC} -Wdeclaration-after-statement -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then if $(${CC} -Wdeclaration-after-statement -Werror -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; } $as_echo "yes" >&6; }
AST_DECLARATION_AFTER_STATEMENT=-Wdeclaration-after-statement AST_DECLARATION_AFTER_STATEMENT=-Wdeclaration-after-statement
@@ -18742,7 +18742,7 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wno-format-truncation" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wno-format-truncation" >&5
$as_echo_n "checking for -Wno-format-truncation... " >&6; } $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 if $(${CC} -Wno-format-truncation -Werror -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; } $as_echo "yes" >&6; }
AST_NO_FORMAT_TRUNCATION=-Wno-format-truncation AST_NO_FORMAT_TRUNCATION=-Wno-format-truncation
@@ -18755,7 +18755,7 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wshadow" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wshadow" >&5
$as_echo_n "checking for -Wshadow... " >&6; } $as_echo_n "checking for -Wshadow... " >&6; }
if $(${CC} -Wshadow -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then if $(${CC} -Wshadow -Werror -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; } $as_echo "yes" >&6; }
AST_SHADOW_WARNINGS=-Wshadow AST_SHADOW_WARNINGS=-Wshadow

6
configure.ac
View File

@@ -1224,7 +1224,7 @@ LDFLAGS="${saved_sanitize_LDFLAGS}"
AC_SUBST(AST_UNDEFINED_SANITIZER) AC_SUBST(AST_UNDEFINED_SANITIZER)
AC_MSG_CHECKING(for -Wdeclaration-after-statement support) AC_MSG_CHECKING(for -Wdeclaration-after-statement support)
if $(${CC} -Wdeclaration-after-statement -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then if $(${CC} -Wdeclaration-after-statement -Werror -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
AC_MSG_RESULT(yes) AC_MSG_RESULT(yes)
AST_DECLARATION_AFTER_STATEMENT=-Wdeclaration-after-statement AST_DECLARATION_AFTER_STATEMENT=-Wdeclaration-after-statement
else else
@@ -1264,7 +1264,7 @@ fi
AC_SUBST(AST_NO_STRICT_OVERFLOW) AC_SUBST(AST_NO_STRICT_OVERFLOW)
AC_MSG_CHECKING(for -Wno-format-truncation) 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 if $(${CC} -Wno-format-truncation -Werror -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
AC_MSG_RESULT(yes) AC_MSG_RESULT(yes)
AST_NO_FORMAT_TRUNCATION=-Wno-format-truncation AST_NO_FORMAT_TRUNCATION=-Wno-format-truncation
else else
@@ -1274,7 +1274,7 @@ fi
AC_SUBST(AST_NO_FORMAT_TRUNCATION) AC_SUBST(AST_NO_FORMAT_TRUNCATION)
AC_MSG_CHECKING(for -Wshadow) AC_MSG_CHECKING(for -Wshadow)
if $(${CC} -Wshadow -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then if $(${CC} -Wshadow -Werror -S -o /dev/null -xc /dev/null > /dev/null 2>&1); then
AC_MSG_RESULT(yes) AC_MSG_RESULT(yes)
AST_SHADOW_WARNINGS=-Wshadow AST_SHADOW_WARNINGS=-Wshadow
else else