We had the same problem previously - https://trac.sagemath.org/ticket/29562
Have you set CPPFLAGS by any chance?

On Tuesday, December 15, 2020 at 12:26:26 PM UTC-8 zsc...@gmail.com wrote:

> I just tried building 9.3.beta4 and my build breaks at pillow-7.2.0 on 
> Catalina 10.15.7.
>
> The actual error is:
>
> [pillow-7.2.0]   gcc -Wno-unused-result -Wsign-compare -Wunreachable-code 
> -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -I/usr/local/include 
> -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk 
> -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include 
> -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers
>  
> -O2 -g -g -DHAVE_OPENJPEG -DHAVE_LIBZ -DHAVE_LIBTIFF -DHAVE_XCB 
> -DPILLOW_VERSION="7.2.0" 
> -I/usr/local/Cellar/openjpeg/2.3.1/include/openjpeg-2.3 
> -I/Users/zscherr/sage/develop/local/var/tmp/sage/build/pillow-7.2.0/src/src/libImaging
>  
> -I/usr/local/Cellar/jpeg/9d/include 
> -I/usr/local/Cellar/libtiff/4.1.0_1/include 
> -I/Users/zscherr/sage/develop/local/var/tmp/sage/build/pillow-7.2.0/src 
> -I/usr/local/Cellar/freetype/2.10.4/include/freetype2 
> -I/usr/local/Cellar/little-cms2/2.11/include 
> -I/Users/zscherr/sage/develop/local/include 
> -I/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include 
> -I/usr/local/include -I/usr/local/Cellar/freetype/2.10.4/include 
> -I/usr/local/include -I/usr/local/opt/openssl@1.1/include 
> -I/usr/local/opt/sqlite/include -I/Users/zscherr/sage/develop/local/include 
> -I/usr/local/Cellar/python@3.9/3.9.1/Frameworks/Python.framework/Versions/3.9/include/python3.9
>  
> -c src/decode.c -o build/temp.macosx-10.15-x86_64-3.9/src/decode.o
>   [pillow-7.2.0]   src/decode.c:810:10: warning: non-portable path to file 
> '"zip.h"'; specified path differs in case from file name on disk 
> [-Wnonportable-include-path]
>   [pillow-7.2.0]   #include "Zip.h"
>   [pillow-7.2.0]            ^~~~~~~
>   [pillow-7.2.0]            "zip.h"
>   [pillow-7.2.0]   src/decode.c:824:43: error: use of undeclared 
> identifier 'ZIPSTATE'
>   [pillow-7.2.0]       decoder = PyImaging_DecoderNew(sizeof(ZIPSTATE));
>   [pillow-7.2.0]                                             ^
>   [pillow-7.2.0]   src/decode.c:836:16: error: expected expression
>   [pillow-7.2.0]       ((ZIPSTATE*)decoder->state.context)->interlaced = 
> interlaced;
>   [pillow-7.2.0]                  ^
>   [pillow-7.2.0]   src/decode.c:836:7: error: use of undeclared identifier 
> 'ZIPSTATE'
>   [pillow-7.2.0]       ((ZIPSTATE*)decoder->state.context)->interlaced = 
> interlaced;
>   [pillow-7.2.0]         ^
>   [pillow-7.2.0]   1 warning and 3 errors generated.
>   [pillow-7.2.0]   gcc -bundle -undefined dynamic_lookup -L/usr/local/lib 
> -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk 
> -L/Users/zscherr/sage/develop/local/lib 
> -Wl,-rpath,/Users/zscherr/sage/develop/local/lib -O2 -g -g 
> build/temp.macosx-10.15-x86_64-3.9/src/_imagingmath.o 
> -L/usr/local/Cellar/jpeg/9d/lib -L/usr/local/Cellar/openjpeg/2.3.1/lib 
> -L/usr/local/Cellar/libtiff/4.1.0_1/lib 
> -L/Users/zscherr/sage/develop/local/var/tmp/sage/build/pillow-7.2.0/src 
> -L/usr/local/Cellar/freetype/2.10.4/lib 
> -L/usr/local/Cellar/little-cms2/2.11/lib 
> -L/Users/zscherr/sage/develop/local/lib -L/usr/local/lib -L/usr/lib 
> -L/usr/local/lib -L/usr/local/opt/openssl@1.1/lib 
> -L/usr/local/opt/sqlite/lib -o build/lib.macosx-10.15-x86_64-3.9/PIL/_
> imagingmath.cpython-39-darwin.so
>   [pillow-7.2.0]   error: command '/usr/bin/gcc' failed with exit code 1
>
> ------------------------------------------------
>
> From what I can tell, I have libzip installed with homebrew, which puts a 
> zip.h symlink in my /usr/local/include directory.  It would appear that the 
> pillow makefile is picking up this zip.h as opposed to the Zip.h that comes 
> with pillow.
>
> I can fix this problem via
>
> brew unlink libzip
> make pillow
> brew link libzip
>
> so I'm guessing it probably requires an easy modification to the pillow 
> makefile.
>

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