libretro: build fixes for updated libretro-common

Makefile

@@ -146,6 +146,7 @@ else ifeq ($(platform), libnx)
    CXXFLAGS += $(CFLAGS)
    fpic = -fPIE
    STATIC_LINKING=1
+   COMMONFLAGS += -DNEED_STRCASESTR
 
 # OSX
 else ifeq ($(platform), osx)
@@ -315,6 +316,7 @@ else ifeq ($(platform), emscripten)
    SHARED := -shared -s TOTAL_MEMORY=67108864
    STATIC_LINKING = 1
    COMMONFLAGS += -DHAVE_TIME_T_IN_TIME_H
+   COMMONFLAGS += -DNEED_STRCASESTR
 
 # Wii
 else ifeq ($(platform), wii)
@@ -393,11 +395,17 @@ else ifeq ($(platform), wincross64)
 # Windows
 else
    CFLAGS += -D__WIN32__
+   COMMONFLAGS += -DNEED_STRCASESTR
    TARGET := $(TARGET_NAME)_libretro.dll
    LDFLAGS += --shared -static-libgcc -static-libstdc++ -Wl,--version-script=$(CORE_DIR)/libretro/link.T -Wl,--gc-sections -L/usr/x86_64-w64-mingw32/lib
    LDFLAGS += -lws2_32 -luser32 -lwinmm -ladvapi32 -lshlwapi -lwsock32 -lws2_32 -lpsapi -liphlpapi -lshell32 -luserenv -lmingw32 -shared -lgcc -lm -lmingw32
 endif
 
+# webOS
+ifneq (,$(or $(findstring webos,$(CROSS_COMPILE)),$(findstring starfish,$(CROSS_COMPILE))))
+   CFLAGS += -D_GNU_SOURCE
+endif
+
 # Common
 ifeq ($(DEBUG), 1)
    COMMONFLAGS += -O0 -g

Makefile.common

@@ -4,6 +4,7 @@ RETRODEP = $(CORE_DIR)/retrodep
 LIBRETRO_COMM_DIR := $(CORE_DIR)/libretro-common
 
 INCFLAGS += \
+	-I$(EMU) \
 	-I$(CORE_DIR) \
 	-I$(CORE_DIR)/libretro \
 	-I$(CORE_DIR)/include \
@@ -13,7 +14,7 @@ INCFLAGS += \
 	-I$(EMU)/printerdrv \
 	-I$(RETRODEP) \
 	-I$(LIBRETRO_COMM_DIR)/include \
-	-I$(LIBRETRO_COMM_DIR)/include/compat/zlib
+	-I$(DEPS_DIR)/libz
 
 CXXFLAGS += $(CPPFLAGS)
 

deps/libz/gzguts.h

@@ -168,7 +168,7 @@
 #define MODE_COPY 1      /* copy input directly */
 #define MODE_GZIP 2      /* decompress a gzip stream */
 
-#include "gzfile.h"
+//#include "gzfile.h"
 
 /* internal gzip file state data structure */
 typedef struct {

deps/libz/inffast.c

@@ -4,7 +4,6 @@
  */
 
 #include <stdint.h>
-
 #include "zutil.h"
 #include "inftrees.h"
 #include "inflate.h"

libretro/libretro-core.h

@@ -421,4 +421,8 @@ struct vice_core_option_info
 
 #define DISK_IMAGE_TYPE_FS 0xFFFF
 
+#ifdef NEED_STRCASESTR
+#define strcasestr compat_strcasestr
+#endif
+
 #endif /* LIBRETRO_CORE_H */