[gdal-dev] building on macOS - fatal error: 'direct.h' file not found

[Even Rouault]

"CheckIncludeFile.c:1:10: fatal error: 'direct.h' file not found" is not 
an issue when it happens during the CMake configuration phase, ie when 
you run "cmake" (it is not expected during the build phase of course). 
The GDAL CMake configuration tries to find which header files are there 
or not : 
https://github.com/OSGeo/gdal/blob/9aa17692a54a2c6afe2fa9a1cabc3443837f8fca/cmake/helpers/configure.cmake#L38

We do test CMake on MacOS in our continuous integration: 
https://github.com/OSGeo/gdal/blob/9aa17692a54a2c6afe2fa9a1cabc3443837f8fca/.github/workflows/cmake_builds.yml#L524

I'm not sure that setting of LDFLAGS, CFLAGS, etc. is necessary.

Even

Le 28/06/2022 à 03:19, Nik Sands a écrit :
> Hi GDAL devs,
>
> Since I last built GDAL (2.2.2), cmake has been introduced and it appears as though it is going to be the only option going forward.  So I’m attempting to use cmake to build GDAL 3.5.0 on macOS 12.4 ('Monterey’).  I’ve installed cmake using the ‘homebrew’ macOS package manager.
>
> However, I’m getting numerous build errors, starting with the following error when running cmake to build GDAL 3.5.0:
>
> 	fatal error: 'direct.h' file not found
>
> (a little more context from the error log is included at the end, below)
>
> I’m attempting to build GDAL as follows:
>
> export LDFLAGS=-L/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib
> export CFLAGS="-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
> export CCFLAGS="-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
> export CXXFLAGS="-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
> export CPPFLAGS="-isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
> cd gdal-3.5.0
> mkdir build
> cd build
> cmake -DPROJ_ROOT=~/build -DSQLITE3_INCLUDE_DIR=~/build/include -DSQLITE3_LIBRARY=~/build/lib/libsqlite3.a .. -DCMAKE_INSTALL_PREFIX=~/build -DCMAKE_BUILD_TYPE=Release ..
>
> I’m a hobbyist and not a professional developer, so my understanding of these things is quite limited.  However, my research so far indicates that ‘direct.h’ is a Windows-specific header file and therefore perhaps cmake has not been configured correctly for macOS in this GDAL distribution?
>
> Is it possible to build GDAL using cmake on macOS?  If so, how to I deal with this error?
>
> I can supply the entire CMakeError.log file if that would help (as an attachement, or copy/pasted as text in an email).
>
> Cheers,
> Nik.
>
> Snippet from CMakeError.log:
> ------------------------------
>
> Source file was:
>   int main() { return 0; }
> Determining if the include file direct.h exists failed with the following output:
> Change Dir: /Users/nsands/Documents/Development/3rdParty/GDAL3/gdal-3.5.0/build/CMakeFiles/CMakeTmp
>
> Run Build Command(s):/usr/bin/make -f Makefile cmTC_190db/fast && /Applications/Xcode.app/Contents/Developer/usr/bin/make  -f CMakeFiles/cmTC_190db.dir/build.make CMakeFiles/cmTC_190db.dir/build
> Building C object CMakeFiles/cmTC_190db.dir/CheckIncludeFile.c.o
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc   -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk    -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk -std=gnu99 -MD -MT CMakeFiles/cmTC_190db.dir/CheckIncludeFile.c.o -MF CMakeFiles/cmTC_190db.dir/CheckIncludeFile.c.o.d -o CMakeFiles/cmTC_190db.dir/CheckIncludeFile.c.o -c /Users/nsands/Documents/Development/3rdParty/GDAL3/gdal-3.5.0/build/CMakeFiles/CMakeTmp/CheckIncludeFile.c
> /Users/nsands/Documents/Development/3rdParty/GDAL3/gdal-3.5.0/build/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:10: fatal error: 'direct.h' file not found
> #include <direct.h>
>           ^~~~~~~~~~
> 1 error generated.
> make[1]: *** [CMakeFiles/cmTC_190db.dir/CheckIncludeFile.c.o] Error 1
> make: *** [cmTC_190db/fast] Error 2
>
> ------------------------------
>
>
> ========================================================
> NIK SANDS
> Line Tamer | Time Traveller | Space Cadet
>
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/gdal-dev

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