svn.cpp:37:10: fatal error: 'apr_lib.h' file not found

[angeloentry]

When I run qmake && make command. It shows the below in command line. This is for MacOS machine.

cd src/ && ( test -e Makefile || /usr/local/Cellar/qt@5/5.15.2/bin/qmake -o Makefile /Users/allensavio/Desktop/Svn2Git/svn2git/src/src.pro ) && /Library/Developer/CommandLineTools/usr/bin/make -f Makefile
/Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -O2 -std=gnu++11 -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=10.13 -Wall -Wextra -fPIC -DVER="""" -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I. -I/usr/include/subversion-1 -I/usr/local/include/subversion-1 -I/usr/include/apr-1.0 -I/usr/include/apr-1 -I/usr/local/include/apr-1 -I/usr/local/Cellar/qt@5/5.15.2/lib/QtCore.framework/Headers -I. -I/usr/local/Cellar/qt@5/5.15.2/mkspecs/macx-clang -F/usr/local/Cellar/qt@5/5.15.2/lib -o svn.o svn.cpp
svn.cpp:37:10: fatal error: 'apr_lib.h' file not found
#include <apr_lib.h>
^~~~~~~~~~~
1 error generated.
make[1]: *** [svn.o] Error 1

[nega0]

From your error message i can see that you're using Homebrew. The Apache Portable Runtime (apr) is keg-only, and not symlinked into your system. You'll have to either run brew link apr (not recommended) or add the appropriate paths to src/src.pro yourself. You'll need to do that for both the include path and the library location (the -L linker flag).