frost/secp256k1-zkp
3
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

configure: Check compile+link when checking existence of functions

Browse Source 
Undeclared functions are fine in C but linking will fail.
This commit is contained in:
Tim Ruffing 2022-03-31 17:41:54 +02:00
parent d13429e28c
commit 79472c7ee5
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
configure.ac
View File

@ -261,13 +261,13 @@ else
fi
AC_MSG_CHECKING([for __builtin_popcount])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[void myfunc() {__builtin_popcount(0);}]])],
AC_LINK_IFELSE([AC_LANG_SOURCE([[void myfunc() {__builtin_popcount(0);}]])],
[ AC_MSG_RESULT([yes]);AC_DEFINE(HAVE_BUILTIN_POPCOUNT,1,[Define this symbol if __builtin_popcount is available]) ],
[ AC_MSG_RESULT([no])
])
AC_MSG_CHECKING([for __builtin_clzll])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[void myfunc() { __builtin_clzll(1);}]])],
AC_LINK_IFELSE([AC_LANG_SOURCE([[void myfunc() { __builtin_clzll(1);}]])],
[ AC_MSG_RESULT([yes]);AC_DEFINE(HAVE_BUILTIN_CLZLL,1,[Define this symbol if __builtin_clzll is available]) ],
[ AC_MSG_RESULT([no])
])