From: Yann E. MORIN Date: Sun, 9 Aug 2015 11:11:42 +0000 (+0200) Subject: toolchain/external: better check for gcc-5 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4a5f878946c37deb8c1785fb8363cd1d322f7436;p=buildroot.git toolchain/external: better check for gcc-5 gcc will always report a three-digit version sting, like 4.9.3 or 5.1.0. For gcc before 5, we want to check the first two digits, while starting with gcc 5, we are only concerned about the first digit. So, change our matching code to test for the leading part of the version string, up to the first dot after as-many version digit we're interested in. Note: we're adding the dot in the .mk code rather than in the Kconfig symbol, because it seemed cleaner to do so. Reported-by: Jörg Krause Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Signed-off-by: Thomas Petazzoni --- diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk index 018f3edb92..7c70d35a3a 100644 --- a/toolchain/helpers.mk +++ b/toolchain/helpers.mk @@ -191,16 +191,12 @@ check_kernel_headers_version = \ # - eat all the remaining chars on the line # - replace by the matched expression # -# - s/\.[[:digit:]]+$// -# - eat a dot followed by as many digits as possible up to the end -# of line -# - replace with nothing -# check_gcc_version = \ expected_version="$(strip $2)" ; \ - real_version=`$(1) --version | sed -r -e '1!d; s/^[^)]+\) ([^[:space:]]+).*/\1/; s/\.[[:digit:]]+$$//;'` ; \ - if [ "$${real_version}" != "$${expected_version}" ] ; then \ - echo "Incorrect selection of gcc version: expected $${expected_version}, got $${real_version}" ; \ + real_version=`$(1) --version | sed -r -e '1!d; s/^[^)]+\) ([^[:space:]]+).*/\1/;'` ; \ + if [[ ! "$${real_version}" =~ ^$${expected_version}\. ]] ; then \ + printf "Incorrect selection of gcc version: expected %s.x, got %s\n" \ + "$${expected_version}" "$${real_version}" ; \ exit 1 ; \ fi