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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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17
common.mak
View File

@@ -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'

2
genprotimg/boot/Makefile
View File

@@ -15,7 +15,7 @@ ALL_CFLAGS := $(NO_PIE_CFLAGS) -Os -g \
-fno-delete-null-pointer-checks -fno-stack-protector \
-fexec-charset=IBM1047 -m64 -mpacked-stack \
-mstack-size=4096 -mstack-guard=128 -msoft-float \
-Wall -Wformat-security -Wextra -Werror \
-Wall -Wformat-security -Wextra \
-Wno-array-bounds
FILES := stage3a.bin stage3b.bin stage3b_reloc.bin

2
genprotimg/src/Makefile
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@@ -17,7 +17,7 @@ WARNINGS := -Wall -Wextra -Wshadow \
-Wcast-align -Wwrite-strings -Wmissing-prototypes \
-Wmissing-declarations -Wredundant-decls -Wnested-externs \
-Wno-long-long -Wuninitialized -Wconversion -Wstrict-prototypes \
-Wpointer-arith -Werror -Wno-error=inline \
-Wpointer-arith -Wno-error=inline \
$(NULL)
$(bin_PROGRAM)_SRCS := $(bin_PROGRAM).c pv/pv_stage3.c pv/pv_image.c \

1
libpv/Makefile
View File

@@ -28,7 +28,6 @@ WARNINGS := -Wall -Wextra -Wshadow \
-Wno-long-long -Wuninitialized -Wconversion -Wstrict-prototypes \
-Wpointer-arith -Wno-error=inline \
-Wno-unused-function -Wno-unused-parameter -Wno-unused-variable \
-Werror \
$(NULL)
ALL_CFLAGS += -std=gnu11 \

1
pvattest/src/Makefile
View File

@@ -17,7 +17,6 @@ WARNINGS := -Wall -Wextra -Wshadow \
-Wno-long-long -Wuninitialized -Wconversion -Wstrict-prototypes \
-Wpointer-arith -Wno-error=inline \
-Wno-unused-function -Wno-unused-parameter -Wno-unused-variable \
-Werror \
$(NULL)
PVATTEST_SRCS := $(wildcard *.c) \