Fix: error: implicitly declaring library function 'strncasecmp' with type 'int (const char *, const char *, unsigned long)' [-Werror,-Wimplicit-function-declaration] https://github.com/php/php-src/commit/1a8df11364292dd3cac2c406a26e4aafaca62d36 --- ext/curl/config.m4.orig 2019-10-22 11:59:47.000000000 -0500 +++ ext/curl/config.m4 2020-12-30 02:23:41.000000000 -0600 @@ -79,6 +79,7 @@ AC_PROG_CPP AC_MSG_CHECKING([for openssl support in libcurl]) AC_TRY_RUN([ +#include #include int main(int argc, char *argv[]) @@ -106,6 +107,7 @@ AC_MSG_CHECKING([for gnutls support in libcurl]) AC_TRY_RUN([ +#include #include int main(int argc, char *argv[])