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make-it-quick
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Add check for functions using a configuration file check

This commit is contained in:
Christophe de Dinechin 2017-05-02 15:39:45 +02:00
parent a1f04b6cf4
commit 0a88f02d71
5 changed files with 22 additions and 3 deletions
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3
Makefile
View File

@ -34,7 +34,8 @@ CONFIG= HAVE_<stdio.h> \
HAVE_<nonexistent.h> \
HAVE_<sys/time.h> \
HAVE_<sys/improbable.h> \
HAVE_<iostream>
HAVE_<iostream> \
HAVE_clearenv
# Define what to test
TESTS=product count-characters

4
config.gnu.mk
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@ -84,5 +84,5 @@ AS_DEPEND= $(CC) $(CPPFLAGS) $(CPPFLAGS_$*) -MM -MP -MF $@ -MT $(@:.d=) $<
# Configuration checks
#------------------------------------------------------------------------------
CC_CONFIG= mkdir -p "$$(dirname "$@")" ; echo '\#define HAVE_$*_H' $$($(CC) $(CFLAGS) -c "$<" -o "$<".o > "$<".err 2>&1 && echo 1 || echo 0) | tr '[:lower:]' '[:upper:]' | sed -e 's|[^[:alnum:]]|_|g' -e 's|_DEFINE_\(.*\)_0|/* \#undef \1 */|g' -e 's|_DEFINE_\(.*\)_1|\#define \1 1|g' > "$@"
CXX_CONFIG= mkdir -p "$$(dirname "$@")" ; echo '\#define HAVE_$*' $$($(CXX) $(CXXFLAGS) -c "$<" -o "$<".o > "$<".err 2>&1 && echo 1 || echo 0) | tr '[:lower:]' '[:upper:]' | sed -e 's|[^[:alnum:]]|_|g' -e 's|_DEFINE_\(.*\)_0|/* \#undef \1 */|g' -e 's|_DEFINE_\(.*\)_1|\#define \1 1|g' > "$@"
CC_CONFIG= mkdir -p "$$(dirname "$@")" ; echo '\#define HAVE_$*_H' $$($(CC) $(CFLAGS) -Werror -c "$<" -o "$<".o > "$<".err 2>&1 && echo 1 || echo 0) | tr '[:lower:]' '[:upper:]' | sed -e 's|[^[:alnum:]]|_|g' -e 's|_DEFINE_\(.*\)_0|/* \#undef \1 */|g' -e 's|_DEFINE_\(.*\)_1|\#define \1 1|g' > "$@"
CXX_CONFIG= mkdir -p "$$(dirname "$@")" ; echo '\#define HAVE_$*' $$($(CXX) $(CXXFLAGS) -Werror -c "$<" -o "$<".o > "$<".err 2>&1 && echo 1 || echo 0) | tr '[:lower:]' '[:upper:]' | sed -e 's|[^[:alnum:]]|_|g' -e 's|_DEFINE_\(.*\)_0|/* \#undef \1 */|g' -e 's|_DEFINE_\(.*\)_1|\#define \1 1|g' > "$@"

7
config.h Normal file
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@ -0,0 +1,7 @@
#define HAVE_STDIO_H 1
#define HAVE_UNISTD_H 1
/* #undef HAVE_NONEXISTENT_H */
#define HAVE_SYS_TIME_H 1
/* #undef HAVE_SYS_IMPROBABLE_H */
#define HAVE_IOSTREAM 1
/* #undef HAVE_CLEARENV_H */

6
config/check_clearenv.c Normal file
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@ -0,0 +1,6 @@
#include <stdlib.h>
int main()
{
return clearenv();
}

5
rules.mk
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@ -383,6 +383,11 @@ $(OBJDIR)/HAVE_<%>: $(OBJDIR)/CONFIG_HAVE_%.cpp
$(OBJDIR)/CONFIG_HAVE_%.cpp: $(OBJDIR)/.mkdir
$(PRINT_GENERATE) mkdir -p "$$(dirname "$@")" ; echo '#include' "<$*>" > "$@"
# Check if a function is present
$(OBJDIR)/HAVE_%: $(OBJDIR)/CONFIG_CHECK_%.c
$(PRINT_CONFIG) $(CC_CONFIG)
$(OBJDIR)/CONFIG_CHECK_%.c: config/check_%.c
$(PRINT_COPY) cp $< $@
.PRECIOUS: $(OBJDIR)/CONFIG_HAVE_%.c $(OBJDIR)/CONFIG_HAVE_%.cpp