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Make -Werror optional

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Enforcing `-Werror` can cause problems when compiling with newer
compilers that have additional warnings on by default.

By default `-Werror` is turned off and can be turned on via
`ENABLE_WERROR=1`.

Fixes: https://github.com/ibm-s390-linux/s390-tools/issues/148
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Steffen Eiden
2023-02-17 15:12:46 +01:00
committed by Jan Höppner
parent c142bb0625
commit d3a3b26d16
5 changed files with 13 additions and 10 deletions
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common.mak
+11 -6
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@@ -101,6 +101,10 @@ else
DEFAULT_CFLAGS += -O3
endif
ifeq ("${ENABLE_WERROR}", "1")
DEFAULT_CFLAGS += -Werror
endif
DEFAULT_CPPFLAGS = -D_GNU_SOURCE
DEFAULT_LDFLAGS = -rdynamic
@@ -302,12 +306,13 @@ help:
@echo ' clean Delete all generated files'
@echo ''
@echo 'OPTIONS'
@echo ' D=1 Build with debugging option "-Og"'
@echo ' C=1 Build with check tool defined with "CHECK=" (default=sparse)'
@echo ' G=1 Build with gcov to collect code coverage data'
@echo ' V=1 Generate verbose build output'
@echo ' W=1 Build with higher warning level'
@echo ' ASAN=1 Build with address sanitizer'
@echo ' D=1 Build with debugging option "-Og"'
@echo ' C=1 Build with check tool defined with "CHECK=" (default=sparse)'
@echo ' G=1 Build with gcov to collect code coverage data'
@echo ' V=1 Generate verbose build output'
@echo ' W=1 Build with higher warning level'
@echo ' ASAN=1 Build with address sanitizer'
@echo ' ENABLE_WERROR=1 Build with -Werror'
@echo ''
@echo 'EXAMPLES'
@echo ' # make clean all D=1 W=1 -j'