Use C locale when invoking awk

If LANG is set to some locale that defines the decimal dot to be
something other than a dot (e.g., a comma), then awk will fail to parse
GCC and ld's version numbers.

diff --git a/build-rr.sh b/build-rr.sh
index 2bb318b77125a910af578e0a5e2631c5581859f4..e361c327ddda7da9c8a42485e371256897790a1f 100755 (executable)
--- a/build-rr.sh
+++ b/build-rr.sh
@@ -309,7 +309,7 @@ checktools ()
        delay=5
 
        # check that gcc is modern enough
-       vers=$(${CC:-cc} -E -dM - < /dev/null | awk '
+       vers=$(${CC:-cc} -E -dM - < /dev/null | LANG=C awk '
            /__GNUC__/ {version += 100*$3}
            /__GNUC_MINOR__/ {version += $3}
            END { print version; if (version) exit 0; exit 1; }') \
@@ -326,7 +326,7 @@ checktools ()
        fi
 
        # check that ld is modern enough
-       vers=$(${CC:-cc} -Wl,--version 2>&1 | awk '
+       vers=$(${CC:-cc} -Wl,--version 2>&1 | LANG=C awk '
            /GNU ld/{version += 100*$NF}
            END { print version; if (version) exit 0; exit 1; }') \
                || die unable to probe ld version