Build errors in etcpack.cxx.o

[evertvorster]

[ 80%] Building CXX object src/nvtt/CMakeFiles/nvtt.dir///extern/etcpack/etcpack.cxx.o
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:162:1: error: a storage class can only be specified for objects and functions
162 | static enum{PATTERN_H = 0,
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:165:1: error: a storage class can only be specified for objects and functions
165 | static enum{MODE_ETC1, MODE_THUMB_T, MODE_THUMB_H, MODE_PLANAR};
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:205:1: error: a storage class can only be specified for objects and functions
205 | static enum{ETC1_RGB_NO_MIPMAPS,ETC2PACKAGE_RGB_NO_MIPMAPS,ETC2PACKAGE_RGBA_NO_MIPMAPS_OLD,ETC2PACKAGE_RGBA_NO_MIPMAPS,ETC2PACKAGE_RGBA1_NO_MIPMAPS,ETC2PACKAGE_R_NO_MIPMAPS,ETC2PACKAGE_RG_NO_MIPMAPS,ETC2PACKAGE_R_SIGNED_NO_MIPMAPS,ETC2PACKAGE_RG_SIGNED_NO_MIPMAPS,ETC2PACKAGE_sRGB_NO_MIPMAPS,ETC2PACKAGE_sRGBA_NO_MIPMAPS,ETC2PACKAGE_sRGBA1_NO_MIPMAPS};
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:206:1: error: a storage class can only be specified for objects and functions
206 | static enum {MODE_COMPRESS, MODE_UNCOMPRESS, MODE_PSNR};
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:207:1: error: a storage class can only be specified for objects and functions
207 | static enum {SPEED_SLOW, SPEED_FAST, SPEED_MEDIUM};
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:208:1: error: a storage class can only be specified for objects and functions
208 | static enum {METRIC_PERCEPTUAL, METRIC_NONPERCEPTUAL};
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:209:1: error: a storage class can only be specified for objects and functions
209 | static enum {CODEC_ETC, CODEC_ETC2};
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:247:1: error: a storage class can only be specified for objects and functions
247 | static enum {GL_R=0x1903,GL_RG=0x8227,GL_RGB=0x1907,GL_RGBA=0x1908};
| ^~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'bool readSrcFile(char*, uint8*&, int&, int&, int&, int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:462:15: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
462 | if(fileExist("tmp.ppm"))
| ^~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:494:14: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
494 | if(fReadPPM("tmp.ppm",w1,h1,img,bitrate))
| ^~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'bool readSrcFileNoExpand(char*, uint8*&, int&, int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:560:15: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
560 | if(fileExist("tmp.ppm"))
| ^~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:590:14: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
590 | if(fReadPPM("tmp.ppm",w1,h1,img,8))
| ^~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'void packBlock59T(uint8 ()[3], uint8, unsigned int, unsigned int&, unsigned int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:63: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:6392:2: note: in expansion of macro 'PUTBITS'
6392 | PUTBITS( compressed2, pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:122: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:6392:2: note: in expansion of macro 'PUTBITS'
6392 | PUTBITS( compressed2, pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'unsigned int compressBlockTHUMB58HFastestPerceptual1000(uint8, int, int, int, int, unsigned int&, unsigned int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:63: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:6985:2: note: in expansion of macro 'PUTBITS'
6985 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:122: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:6985:2: note: in expansion of macro 'PUTBITS'
6985 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'double compressBlockTHUMB58HFastest(uint8*, int, int, int, int, unsigned int&, unsigned int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:63: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:7062:2: note: in expansion of macro 'PUTBITS'
7062 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:122: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:7062:2: note: in expansion of macro 'PUTBITS'
7062 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'double compressBlockTHUMB58HAlpha(uint8*, uint8*, int, int, int, int, unsigned int&, unsigned int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:63: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:7126:2: note: in expansion of macro 'PUTBITS'
7126 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:122: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:7126:2: note: in expansion of macro 'PUTBITS'
7126 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'double compressBlockTHUMB58HFast(uint8*, int, int, int, int, unsigned int&, unsigned int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:63: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:7240:2: note: in expansion of macro 'PUTBITS'
7240 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:122: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:7240:2: note: in expansion of macro 'PUTBITS'
7240 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'void readAlpha(uint8*&, int&, int&, int&, int&)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:8516:11: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
8516 | fReadPGM("alpha.pgm",width,height,tempdata,wantedBitDepth);
| ^~~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'void writeOutputFile(char*, uint8*, uint8*, int, int)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:9460:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
9460 | fWritePPM("tmp.ppm",width,height,img,8,false);
| ^~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:9465:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
9465 | fWritePPM("tmp.ppm",width,height,img,16,false);
| ^~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:9468:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
9468 | fWritePGM("alphaout.pgm",width,height,alphaimg,false,8);
| ^~~~~~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:9470:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
9470 | fWritePGM("alphaout.pgm",width,height,alphaimg,false,16);
| ^~~~~~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:9506:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
9506 | fReadPPM("tmp.ppm", rw, rh, pixelsRGB, 8);
| ^~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:9507:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
9507 | fReadPGM("alphaout.pgm", rw, rh, pixelsA, 8);
| ^~~~~~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'unsigned int compressBlockTHUMB58HExhaustivePerceptual(uint8*, int, int, int, int, unsigned int&, unsigned int&, unsigned int)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:63: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:14888:2: note: in expansion of macro 'PUTBITS'
14888 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:122: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:14888:2: note: in expansion of macro 'PUTBITS'
14888 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx: In function 'unsigned int compressBlockTHUMB58HExhaustive(uint8*, int, int, int, int, unsigned int&, unsigned int&, unsigned int)':
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:63: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:15099:2: note: in expansion of macro 'PUTBITS'
15099 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:130:34: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=]
130 | #define MASK(size, startpos) (((2<<(size-1))-1) << SHIFT(size,startpos))
| ~^~~~~~~~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:131:122: note: in expansion of macro 'MASK'
131 | #define PUTBITS( dest, data, size, startpos) dest = ((dest & ~MASK(size, startpos)) | ((data << SHIFT(size, startpos)) & MASK(size,startpos)))
| ^~~~
/data/OS/aur/nvidia-texture-tools-git/src/nvidia-texture-tools/extern/etcpack/etcpack.cxx:15099:2: note: in expansion of macro 'PUTBITS'
15099 | PUTBITS( compressed2, best_pixel_indices, 32, 31);
| ^~~~~~~
make[2]: *** [src/nvtt/CMakeFiles/nvtt.dir/build.make:369: src/nvtt/CMakeFiles/nvtt.dir///extern/etcpack/etcpack.cxx.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:720: src/nvtt/CMakeFiles/nvtt.dir/all] Error 2
make: *** [Makefile:183: all] Error 2
==> ERROR: A failure occurred in build().

[castano]

Please, provide compiler version and target OS.

[evertvorster]

Hi there!
The OS is Arch Linux

gcc --version
gcc (GCC) 10.1.0

uname -a
Linux Vorster.Home 5.4.49-1-lts #1 SMP Thu, 25 Jun 2020 00:14:43 +0000 x86_64 GNU/Linux

Build instructions:
cmake -DCMAKE_INSTALL_PREFIX=/usr
-DCMAKE_C_FLAGS:STRING="${CFLAGS} -msse4.1"
-DCMAKE_CXX_FLAGS:STRING="${CXXFLAGS} -msse4.1"
../nvidia-texture-tools/
make

It's worth noting that these very same build instructions work on git revision
1e06539

To build it now, I just roll back to that fairly new revision. So, it's something that has changed since then.
I hope all this helps?

-Evert-

[castano]

Well, I'm not sure what's causing the build problem, but I should not be building etcpack anyway. I removed it from the build and that should hopefully fix the problem.

[evertvorster]

In deed it does. Just compiled the Arch Linux version against latest master. I'll update the package in the repositories now.

Kind regards,-Evert-