Makefile.am: add no-undefined for win32

"Undefined symbols are not allowed in x86_64-w64-mingw32 shared libraries"

This was also applied in the official MINGW-packages repo:
Alexpux/MINGW-packages@b5566c58a

diff --git a/Makefile.am b/Makefile.am
index 58de75d47eae44914b08a5a2f72315193df69e89..37cfe61b6086e14edc9db2ef074bbfef9d8d0063 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -52,6 +52,7 @@ libjq_la_LDFLAGS = $(onig_LDFLAGS) -export-symbols-regex '^j[qv]_' -version-info
 
 if WIN32
 libjq_la_LIBADD += -lshlwapi
+libjq_la_LDFLAGS += -no-undefined
 endif
 
 include_HEADERS = src/jv.h src/jq.h