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Fix HAVE_TM_GMTOFF check for older CMake. (#4292)

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Older CMake (for example 2.8.12.2) generates feature check with unused
variable, which reports false positive fail due to -Werror=unused-value.
The feature is present and works, so we should only ignore this build warning.

Fixes #2791.

JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác csaba.osztrogonac@h-lab.eu
This commit is contained in:
Csaba Osztrogonác
2020-10-17 11:32:47 +02:00
committed by GitHub
parent 080abb94ca
commit 9da1211e26
1 changed files with 1 additions and 1 deletions
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jerry-port/default/CMakeLists.txt
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@@ -54,7 +54,7 @@ INCLUDE (CheckStructHasMember)
# CHECK_STRUCT_HAS_MEMBER works by trying to compile some C code that accesses the
# given field of the given struct. However, our default compiler options break this
# C code, so turn a couple of them off for this.
set(CMAKE_REQUIRED_FLAGS "-Wno-error=strict-prototypes -Wno-error=old-style-definition")
set(CMAKE_REQUIRED_FLAGS "-Wno-error=strict-prototypes -Wno-error=old-style-definition -Wno-error=unused-value")
# tm.tm_gmtoff is non-standard, so glibc doesn't expose it in c99 mode
# (our default). Define some macros to expose it anyway.
set(CMAKE_REQUIRED_DEFINITIONS "-D_BSD_SOURCE -D_DEFAULT_SOURCE")