diff --git a/.gitignore b/.gitignore
index 49acc9f2e17..449963153f3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -177,6 +177,9 @@ php
 /ext/*/configure.ac
 /ext/*/run-tests.php
 
+# Generated by ./configure if libc might be musl
+/ext/gettext/tests/locale/en_US
+
 # ------------------------------------------------------------------------------
 # Generated by Windows build system
 # ------------------------------------------------------------------------------
diff --git a/ext/gettext/config.m4 b/ext/gettext/config.m4
index 9e304d82b8d..b3a6c35d6c0 100644
--- a/ext/gettext/config.m4
+++ b/ext/gettext/config.m4
@@ -25,6 +25,17 @@ if test "$PHP_GETTEXT" != "no"; then
     AC_CHECK_LIB(c, bindtextdomain, [
       GETTEXT_LIBS=
       GETTEXT_CHECK_IN_LIB=c
+
+      dnl If libintl.h is provided by libc, it's possible that libc is musl.
+      dnl The gettext family of functions under musl ignores the codeset
+      dnl suffix on directories like "en_US.UTF-8"; instead they look only
+      dnl in "en_US". To accomodate that, we symlink some test data from one
+      dnl to the other.
+      AC_MSG_NOTICE([symlinking en_US.UTF-8 messages to en_US in case you are on musl])
+      _linkdest="${srcdir%/}"/ext/gettext/tests/locale/en_US
+      AS_IF([test ! -e "${_linkdest}"],[
+        ln -s en_US.UTF-8 "${_linkdest}"
+      ])
     ],[
       AC_MSG_ERROR(Unable to find required gettext library)
     ])