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Date: Wed, 04 Mar 2015 09:25:39 +0000
From: Neil Henning <misc@...kborn.com>
To: musl@...ts.openwall.com
Subject: Patch to allow configure out-with source directory
Hey (new to the list),
Below is a patch to allow the running of configure out-with the source
directory (basically just looks up the path to the configure script, and
then bases the -I includes in the check steps on this path).
Any questions please get in touch,
Cheers,
-Neil.
> diff --git a/configure b/configure
> index e80fdfb..eb6edfb 100755
> --- a/configure
> +++ b/configure
> @@ -108,6 +108,7 @@ fi
>
> # Beginning of actual script
>
> +SOURCE_DIR=$(cd "$(dirname "$0")" && pwd)
> CFLAGS_C99FSE=
> CFLAGS_AUTO=
> CFLAGS_MEMOPS=
> @@ -281,8 +282,8 @@ __attribute__((__may_alias__))
> #endif
> x;
> EOF
> -if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
> - -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
> +if $CC $CFLAGS_C99FSE -I$SOURCE_DIR/arch/$ARCH -I$SOURCE_DIR/include \
> + $CPPFLAGS $CFLAGS -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
> printf "no\n"
> else
> printf "yes\n"
> @@ -483,13 +484,15 @@ esac
> # be dangerously incorrect because it depends on (1) the macros being
> # correct, and (2) IEEE semantics.
> #
> +
> printf "checking whether compiler's long double definition matches
> float.h... "
> echo '#include <float.h>' > "$tmpc"
> echo '#if LDBL_MANT_DIG == 53' >> "$tmpc"
> echo 'typedef char ldcheck[9-(int)sizeof(long double)];' >> "$tmpc"
> echo '#endif' >> "$tmpc"
> -if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
> - -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
> +
> +if $CC $CFLAGS_C99FSE -I$SOURCE_DIR/arch/$ARCH -I$SOURCE_DIR/include \
> + $CPPFLAGS $CFLAGS -c -o /dev/null $tmpc ; then
> printf "yes\n"
> else
> printf "no\n"
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