Fix Travis build on macOS (#731)

diff --git a/.travis.yml b/.travis.yml
index b991306..5516e71 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -55,7 +55,7 @@
         - ./autogen.sh
         - ./configure $CONFIGURE_OPTS --with-coretext
         - make
-        - make check || (cat `find -name '*.log'` && false)
+        - make check || (cat `find . -name '*.log'` && false)
 
 notifications:
   irc: "irc.freenode.org#harfbuzz"
diff --git a/src/check-defs.sh b/src/check-defs.sh
index 9b4b757..c669783 100755
--- a/src/check-defs.sh
+++ b/src/check-defs.sh
@@ -27,11 +27,11 @@
 		so=$libs/lib${lib}.$suffix
 		if ! test -f "$so"; then continue; fi
 
-		EXPORTED_SYMBOLS="`nm "$so" | grep ' [BCDGINRSTVW] .' | grep -v ' _fini\>\| _init\>\| _fdata\>\| _ftext\>\| _fbss\>\| __bss_start\>\| __bss_start__\>\| __bss_end__\>\| _edata\>\| _end\>\| _bss_end__\>\| __end__\>\| __gcov_flush\>\| llvm_' | cut -d' ' -f3`"
-
 		# On mac, C symbols are prefixed with _
 		if test $suffix = dylib; then prefix="_"; fi
 
+		EXPORTED_SYMBOLS="`nm "$so" | grep ' [BCDGINRSTVW] .' | grep -v " $prefix"'\(_fini\>\|_init\>\|_fdata\>\|_ftext\>\|_fbss\>\|__bss_start\>\|__bss_start__\>\|__bss_end__\>\|_edata\>\|_end\>\|_bss_end__\>\|__end__\>\|__gcov_flush\>\|llvm_\)' | cut -d' ' -f3`"
+
 		if test -f "$so"; then
 
 			echo "Checking that $so has the same symbol list as $def"