cb: Enable Debugging builds, disable debugging mode for libvterm and MacOS CI

Disable debugging on MacOS CI, causes for some reasons it causes failure
like this:

```
clang -c -I. -Iproto -DHAVE_CONFIG_H   -DMACOS_X -DMACOS_X_DARWIN  -g -DDEBUG -Wall -Wshadow -Wmissing-prototypes   -DEXITFREE     -o objects/alloc.o alloc.c
make[1]: *** [objects/os_macosx.o] Error 1
make[1]: *** Waiting for unfinished jobs....
In file included from alloc.c:14:
./vim.h:533:11: fatal error: 'sodium.h' file not found
  533 | # include <sodium.h>
      |           ^~~~~~~~~~
1 error generated.
make[1]: *** [objects/alloc.o] Error 1
make: *** [first] Error 2
```

Signed-off-by: Christian Brabandt <[email protected]>

Author: chrisbra

.github/workflows/ci.yml

@@ -372,6 +372,8 @@ jobs:
           if clang --version | grep -qs 'Apple clang version \(1[3-9]\|[2-9]\)\.'; then
             sed -i.bak -f ci/config.mk.clang-12.sed ${SRCDIR}/auto/config.mk
           fi
+          # enabling debug mode breaks MacOS CI, cannot find header sodium.h, WTF?
+          sed -i.bak -e "s/^CFLAGS =/#&/g" ${SRCDIR}/Makefile
 
       - name: Build
         env:

src/Makefile

@@ -602,7 +602,7 @@ CClink = $(CC)
 #CFLAGS = -g -O2 -fno-strength-reduce -Wall -Wmissing-prototypes
 #CFLAGS = -g -Wall -Wmissing-prototypes
 #CFLAGS = -O6 -fno-strength-reduce -Wall -Wshadow -Wmissing-prototypes
-#CFLAGS = -g -DDEBUG -Wall -Wshadow -Wmissing-prototypes
+CFLAGS = -g -DDEBUG -Wall -Wshadow -Wmissing-prototypes
 #CFLAGS = -g -O2 '-DSTARTUPTIME="vimstartup"' -fno-strength-reduce -Wall -Wmissing-prototypes
 
 # Use this with GCC to check for mistakes, unused arguments, etc.

src/libvterm/src/vterm_internal.h

@@ -17,6 +17,10 @@
 # define UNUSED
 #endif
 
+#ifdef DEBUG
+#undef DEBUG
+#endif
+
 #ifdef DEBUG
 # define DEBUG_LOG(s) fprintf(stderr, s)
 # define DEBUG_LOG1(s, a) fprintf(stderr, s, a)