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| author |   Mattias Nissler <mnissler@chromium.org> | 2019-11-04 10:11:20 +0000 |
|---|---|---|
| committer |   Sergei Trofimovich <slyfox@gentoo.org> | 2019-11-06 22:44:33 +0000 |
| commit | 3ef6b33339da7bb04afd77e1bc5db011b02d658a (patch) | |
| tree | 82f88edfa2044ef28ca390135d2cf159f08c90b4 /eclass/toolchain-funcs.eclass | |
| parent | net-wireless/srslte: bump (diff) | |
| download | gentoo-3ef6b33339da7bb04afd77e1bc5db011b02d658a.tar.gz gentoo-3ef6b33339da7bb04afd77e1bc5db011b02d658a.tar.bz2 gentoo-3ef6b33339da7bb04afd77e1bc5db011b02d658a.zip | |
toolchain-funcs.eclass: fix tc-cpp-is-true() to work with clang
Clang's preprocessor likes to output a leading newline, which makes
the comparison always fail. GCC generates additional output with certain
flags (e.g. -ggdb3) as well. Hence, switch the test to trigger a
preprocessor error when the condition is not true and examine the exit
code.
Bug: https://bugs.gentoo.org/698912
Signed-off-by: Mattias Nissler <mnissler@chromium.org>
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Diffstat (limited to 'eclass/toolchain-funcs.eclass')
| -rw-r--r-- | eclass/toolchain-funcs.eclass | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass index e358d484417a..1bc6cbbc1088 100644 --- a/eclass/toolchain-funcs.eclass +++ b/eclass/toolchain-funcs.eclass @@ -207,14 +207,13 @@ tc-cpp-is-true() { local CONDITION=${1} shift - local RESULT=$($(tc-getTARGET_CPP) "${@}" -P - <<-EOF 2>/dev/null - #if ${CONDITION} - true - #endif - EOF - ) - - [[ ${RESULT} == true ]] + $(tc-getTARGET_CPP) "${@}" -P - <<-EOF >/dev/null 2>&1 + #if ${CONDITION} + true + #else + #error false + #endif + EOF } # @FUNCTION: tc-detect-is-softfloat |