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build-sys: fix conftest.c to work on arm 

All tests for compiler support were failing with:

/usr/bin/ld: /tmp/ccwnVc2A.o: relocation R_ARM_MOVW_ABS_NC against `a' can not be used when making a shared object; recompile with -fPIC
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2014-08-02 23:50:22 -04:00
parent ac9c87dbc4
commit 0943f4b7b2
1 changed files with 1 additions and 1 deletions
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2
m4/attributes.m4
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@ -42,7 +42,7 @@ AC_DEFUN([CC_CHECK_FLAG_APPEND], [
AS_TR_SH([cc_cv_$2_$3]),
[eval "AS_TR_SH([cc_save_$2])='${$2}'"
eval "AS_TR_SH([$2])='-Werror $3'"
AC_LINK_IFELSE([AC_LANG_SOURCE([int a = 0; int main(void) { return a; } ])],
AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) { return 0; } ])],
[eval "AS_TR_SH([cc_cv_$2_$3])='yes'"],
[eval "AS_TR_SH([cc_cv_$2_$3])='no'"])
eval "AS_TR_SH([$2])='$cc_save_$2'"])