diff --git a/m4/libnfc_check_pcsc.m4 b/m4/libnfc_check_pcsc.m4
index 990a3ff..96c2ece 100644
--- a/m4/libnfc_check_pcsc.m4
+++ b/m4/libnfc_check_pcsc.m4
@@ -5,23 +5,27 @@ dnl libpcsclite is found using pkg-config
 AC_DEFUN([LIBNFC_CHECK_PCSC],
 [
   if test "x$pcsc_required" = "xyes"; then
+    PKG_CHECK_MODULES([libpcsclite], [libpcsclite], [HAVE_PCSC=1], [HAVE_PCSC=0])
+    if test x"$HAVE_PCSC" = "x1" ; then
+      if test x"$PKG_CONFIG_REQUIRES" != x""; then
+        PKG_CONFIG_REQUIRES="$PKG_CONFIG_REQUIRES,"
+      fi
+      PKG_CONFIG_REQUIRES="$PKG_CONFIG_REQUIRES libpcsclite"
+    fi
     case "$host" in
       *darwin*)
-        AC_MSG_CHECKING(for PC/SC)
-        libpcsclite_LIBS="-Wl,-framework,PCSC"
-        libpcsclite_CFLAGS="-I/System/Library/Frameworks/PCSC.framework/Headers"
-        HAVE_PCSC=1
-        AC_MSG_RESULT(yes: darwin PC/SC framework)
+        if test x"$HAVE_PCSC" = "x0" ; then
+          AC_MSG_CHECKING(for PC/SC)
+          libpcsclite_LIBS="-Wl,-framework,PCSC"
+          libpcsclite_CFLAGS="-I/System/Library/Frameworks/PCSC.framework/Headers"
+          HAVE_PCSC=1
+          AC_MSG_RESULT(yes: darwin PC/SC framework)
+        fi
       ;;
       *)
-        PKG_CHECK_MODULES([libpcsclite], [libpcsclite], [HAVE_PCSC=1], [HAVE_PCSC=0])
         if test x"$HAVE_PCSC" = "x0" ; then
           AC_MSG_ERROR([libpcsclite is mandatory.])
         fi
-        if test x"$PKG_CONFIG_REQUIRES" != x""; then
-          PKG_CONFIG_REQUIRES="$PKG_CONFIG_REQUIRES,"
-        fi
-        PKG_CONFIG_REQUIRES="$PKG_CONFIG_REQUIRES libpcsclite"
       ;;
     esac
     AC_SUBST(libpcsclite_LIBS)