- dnl Persuade glibc <stdio.h> to declare fgets_unlocked(), fputs_unlocked()
- dnl etc.
- AC_REQUIRE([AC_GNU_SOURCE])
+ dnl Persuade glibc and Solaris <stdio.h> to declare
+ dnl fgets_unlocked(), fputs_unlocked() etc.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])