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config.h: define _GNU_SOURCE

Otherwise we don't get goodies like asprintf, and 64-bit offsets.  Should
be a harmless-define on non-glibc systems.
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1 parent b55c668 commit 590d63376591791869b58743d3eca9c452d705e6 @rustyrussell committed Mar 1, 2011
Showing with 6 additions and 4 deletions.
  1. +2 −1 config.h
  2. +4 −3 tools/configurator/configurator.c
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@@ -1,6 +1,7 @@
+/* Generated by CCAN configurator */
#ifndef CCAN_CONFIG_H
#define CCAN_CONFIG_H
-/* Generated by CCAN configurator */
+#define _GNU_SOURCE /* Always use GNU extensions. */
#define CCAN_COMPILER "cc"
#define CCAN_CFLAGS "-g -Wall -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations"
@@ -337,9 +337,10 @@ int main(int argc, char *argv[])
unlink(INPUT_FILE);
cmd[strlen(cmd) - strlen(" -o " OUTPUT_FILE " " INPUT_FILE)] = '\0';
- printf("#ifndef CCAN_CONFIG_H\n"
- "#define CCAN_CONFIG_H\n"
- "/* Generated by CCAN configurator */\n");
+ printf("/* Generated by CCAN configurator */\n"
+ "#ifndef CCAN_CONFIG_H\n"
+ "#define CCAN_CONFIG_H\n");
+ printf("#define _GNU_SOURCE /* Always use GNU extensions. */\n");
printf("#define CCAN_COMPILER \"%s\"\n", argv[1]);
printf("#define CCAN_CFLAGS \"%s\"\n\n", cmd + strlen(argv[1]) + 1);
for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)

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