Fix Windows build (fix #911)

Makefile.am

@@ -50,6 +50,10 @@ libjq_la_SOURCES = ${LIBJQ_SRC}
 libjq_la_LIBADD = -lm
 libjq_la_LDFLAGS = -export-symbols-regex '^j[qv]_' -version-info 1:4:0
 
+if WIN32
+libjq_la_LIBADD += -lshlwapi
+endif
+
 include_HEADERS = src/jv.h src/jq.h
 
 ### Running tests under Valgrind

configure.ac

@@ -81,6 +81,8 @@ fi
 AC_CHECK_FUNCS(memmem)
 AC_CHECK_FUNCS(mkstemp)
 
+AC_CHECK_HEADER("shlwapi.h",[have_win32=1;])
+AM_CONDITIONAL([WIN32], [test "x$have_win32" = x1])
 
 dnl Running tests with Valgrind is slow. It is faster to iterate on
 dnl code without Valgrind until tests pass, then enable Valgrind and

src/linker.c

@@ -8,6 +8,10 @@
 #include <sys/stat.h>
 #include <libgen.h>
 
+#ifdef WIN32
+#include <shlwapi.h>
+#endif
+
 #include "jq_parser.h"
 #include "locfile.h"
 #include "jv.h"