clean up dns_parse_callback

[musl] / configure

diff --git a/configure b/configure
index e1aefed..853bf05 100755 (executable)
--- a/configure
+++ b/configure
@@ -353,6 +353,14 @@ tryflag CFLAGS_C99FSE -fexcess-precision=standard \
 || { test "$ARCH" = i386 && tryflag CFLAGS_C99FSE -ffloat-store ; }
 tryflag CFLAGS_C99FSE -frounding-math
 
+#
+# Semantically we want to insist that our sources follow the
+# C rules for type-based aliasing, but most if not all real-world
+# compilers are known or suspected to have critical bugs in their
+# type-based aliasing analysis. See for example GCC bug 107107.
+#
+tryflag CFLAGS_C99FSE -fno-strict-aliasing
+
 #
 # We may use the may_alias attribute if __GNUC__ is defined, so
 # if the compiler defines __GNUC__ but does not provide it,
@@ -409,7 +417,7 @@ test "$debug" = yes && CFLAGS_AUTO=-g
 #
 printf "checking whether we should preprocess assembly to add debugging information... "
 if fnmatch '-g*|*\ -g*' "$CFLAGS_AUTO $CFLAGS" &&
-   test -f "tools/add-cfi.$ARCH.awk" &&
+   test -f "$srcdir/tools/add-cfi.$ARCH.awk" &&
    printf ".file 1 \"srcfile.s\"\n.line 1\n.cfi_startproc\n.cfi_endproc" | $CC -g -x assembler -c -o /dev/null 2>/dev/null -
 then
   ADD_CFI=yes
@@ -723,11 +731,6 @@ fi
 test "$SUBARCH" \
 && printf "configured for %s variant: %s\n" "$ARCH" "$ARCH$SUBARCH"
 
-case "$ARCH$SUBARCH" in
-arm) ASMSUBARCH=el ;;
-*) ASMSUBARCH=$SUBARCH ;;
-esac
-
 #
 # Some archs (powerpc) have different possible long double formats
 # that the compiler can be configured for. The logic for whether this