fix build on macos

[lowlyw]

Description

build on macos was failing due to -Wpointer-sign -Werror

previously:

make
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/config.c -o src/config.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/glsl_shader.c -o src/glsl_shader.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/main.c -o src/main.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/opengl.c -o src/opengl.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_80.c -o src/sm_80.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_81.c -o src/sm_81.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_82.c -o src/sm_82.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_84.c -o src/sm_84.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_85.c -o src/sm_85.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_86.c -o src/sm_86.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_87.c -o src/sm_87.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_88.c -o src/sm_88.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_89.c -o src/sm_89.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_8b.c -o src/sm_8b.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_8d.c -o src/sm_8d.o
cc -c -O2 -fno-strict-aliasing -Werror  -I/opt/local/include/SDL2 -D_THREAD_SAFE -DSYSTEM_VOLUME_MIXER_AVAILABLE=0 -I. src/sm_8f.c -o src/sm_8f.o
src/sm_8f.c:518:10: error: passing 'uint8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Werror,-Wpointer-sign]
  strcpy((uint8 *)&room_main_asm_variables[2], "@");
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/secure/_string.h:84:27: note: expanded from macro 'strcpy'
                __builtin___strcpy_chk (dest, __VA_ARGS__, __darwin_obsz (dest))
                                        ^~~~
src/sm_8f.c:519:10: error: passing 'uint8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Werror,-Wpointer-sign]
  strcpy((uint8 *)&room_main_asm_variables[6], " ");
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/secure/_string.h:84:27: note: expanded from macro 'strcpy'
                __builtin___strcpy_chk (dest, __VA_ARGS__, __darwin_obsz (dest))
                                        ^~~~
src/sm_8f.c:640:10: error: passing 'uint8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Werror,-Wpointer-sign]
  strcpy((uint8 *)room_main_asm_variables, "\"");
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/secure/_string.h:84:27: note: expanded from macro 'strcpy'
                __builtin___strcpy_chk (dest, __VA_ARGS__, __darwin_obsz (dest))
                                        ^~~~
src/sm_8f.c:641:10: error: passing 'uint8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Werror,-Wpointer-sign]
  strcpy((uint8 *)&room_main_asm_variables[2], "<");
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/secure/_string.h:84:27: note: expanded from macro 'strcpy'
                __builtin___strcpy_chk (dest, __VA_ARGS__, __darwin_obsz (dest))
                                        ^~~~
src/sm_8f.c:662:12: error: passing 'uint8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Werror,-Wpointer-sign]
    strcpy((uint8 *)room_main_asm_variables, "\b");
    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/secure/_string.h:84:27: note: expanded from macro 'strcpy'
                __builtin___strcpy_chk (dest, __VA_ARGS__, __darwin_obsz (dest))
                                        ^~~~
src/sm_8f.c:687:12: error: passing 'uint8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Werror,-Wpointer-sign]
    strcpy((uint8 *)room_main_asm_variables, "*");
    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/secure/_string.h:84:27: note: expanded from macro 'strcpy'
                __builtin___strcpy_chk (dest, __VA_ARGS__, __darwin_obsz (dest))
                                        ^~~~
src/sm_8f.c:704:12: error: passing 'uint8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Werror,-Wpointer-sign]
    strcpy((uint8 *)room_main_asm_variables, "*");
    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/secure/_string.h:84:27: note: expanded from macro 'strcpy'
                __builtin___strcpy_chk (dest, __VA_ARGS__, __darwin_obsz (dest))
                                        ^~~~
7 errors generated.
make: *** [src/sm_8f.o] Error 1

Will this Pull Request break anything?

probably not

Suggested Testing Steps

shouldn't be functionally any different