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conan install libstudxml/1.0.1@ --build=libstudxml --profile=/Users/jenkins/w/BuildSingleReference@2/20395/c6ca38c6-ceb3-4065-9a82-e2f5f1c25f4c/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=12.0
os=Macos
os_build=Macos
[options]
libstudxml:shared=True
[build_requires]
[env]

libstudxml/1.0.1: Forced build from source
Installing package: libstudxml/1.0.1
Requirements
    expat/2.4.1 from 'conan-center' - Cache
    libstudxml/1.0.1 from local cache - Cache
Packages
    expat/2.4.1:60570b031d430e6f0038a99498471dea196b9d22 - Cache
    libstudxml/1.0.1:bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538 - Build

Installing (downloading, building) binaries...
expat/2.4.1: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libstudxml/1.0.1: Copying sources to build folder
libstudxml/1.0.1: Building your package in /Users/jenkins/w/BuildSingleReference@2/.conan/data/libstudxml/1.0.1/_/_/build/bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538
libstudxml/1.0.1: Generator txt created conanbuildinfo.txt
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
libstudxml/1.0.1: Calling build()
libstudxml/1.0.1: Calling:
 > source_subfolder/configure '--with-external-expat' 'CXXFLAGS="-UNDEBUG"' '--enable-shared' '--disable-static' '--prefix=/Users/jenkins/w/BuildSingleReference@2/.conan/data/libstudxml/1.0.1/_/_/package/bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538' '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libexecdir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' '--datarootdir=${prefix}/share' 

----Running------
> source_subfolder/configure '--with-external-expat' 'CXXFLAGS="-UNDEBUG"' '--enable-shared' '--disable-static' '--prefix=/Users/jenkins/w/BuildSingleReference@2/.conan/data/libstudxml/1.0.1/_/_/package/bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538' '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libexecdir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' '--datarootdir=${prefix}/share' 
-----------------
checking for a BSD-compatible install... /usr/local/bin/ginstall -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /usr/local/bin/gmkdir -p
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking how to create a ustar tar archive... gnutar
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking for ar... ar
checking the archiver (ar) interface... ar
checking build system type... x86_64-apple-darwin20.3.0
checking host system type... x86_64-apple-darwin20.3.0
checking how to print strings... printf
checking for a sed that does not truncate output... /usr/bin/sed
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for fgrep... /usr/bin/grep -F
checking for ld used by gcc... /Users/administrator/Downloads/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld
checking if the linker (/Users/administrator/Downloads/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 786432
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert x86_64-apple-darwin20.3.0 file names to x86_64-apple-darwin20.3.0 format... func_convert_file_noop
checking how to convert x86_64-apple-darwin20.3.0 file names to toolchain format... func_convert_file_noop
checking for /Users/administrator/Downloads/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for archiver @FILE support... no
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for mt... no
checking if : is a manifest tool... no
checking for dsymutil... dsymutil
checking for nmedit... nmedit
checking for lipo... lipo
checking for otool... otool
checking for otool64... no
checking for -single_module linker flag... yes
checking for -exported_symbols_list linker flag... yes
checking for -force_load linker flag... yes
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... yes
checking for gcc option to produce PIC... -fno-common -DPIC
checking if gcc PIC flag -fno-common -DPIC works... yes
checking if gcc static flag -static works... no
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/Users/administrator/Downloads/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes
checking dynamic linker characteristics... darwin20.3.0 dyld
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... no
checking for diff... diff
checking whether diff accepts -u... yes
checking for g++... g++
checking whether we are using the GNU C++ compiler... no
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking how to run the C++ preprocessor... g++ -E
checking whether the g++ linker (/Users/administrator/Downloads/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... no
libtool.m4: error: problem compiling CXX test program
checking for g++ option to produce PIC...  -DPIC
checking if g++ PIC flag  -DPIC works... no
checking if g++ static flag  works... no
checking if g++ supports -c -o file.o... no
checking if g++ supports -c -o file.o... (cached) no
checking whether the g++ linker (/Users/administrator/Downloads/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... no
checking dynamic linker characteristics... darwin20.3.0 dyld
checking how to hardcode library paths into programs... immediate
configure: creating ./config.lt
config.lt: creating libtool
checking if we should use external expat... yes
checking for expat... no
libstudxml/1.0.1: 
configure: error: expat is not found; consider using CPPFLAGS/LDFLAGS to specify its location
libstudxml/1.0.1: WARN: Build folder is dirty, removing it: /Users/jenkins/w/BuildSingleReference@2/.conan/data/libstudxml/1.0.1/_/_/build/bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538
libstudxml/1.0.1: ERROR: Package 'bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538' build failed
libstudxml/1.0.1: WARN: Build folder /Users/jenkins/w/BuildSingleReference@2/.conan/data/libstudxml/1.0.1/_/_/build/bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538
ERROR: libstudxml/1.0.1: Error in build() method, line 85
	autotools = self._configure_autotools()
while calling '_configure_autotools', line 55
	self._autotools.configure(configure_dir=self._source_subfolder, args=args)
	ConanException: Error 1 while executing source_subfolder/configure '--with-external-expat' 'CXXFLAGS="-UNDEBUG"' '--enable-shared' '--disable-static' '--prefix=/Users/jenkins/w/BuildSingleReference@2/.conan/data/libstudxml/1.0.1/_/_/package/bfb4bae3a4d72e1ee55cbc96d93b2ae86f6fa538' '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libexecdir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' '--datarootdir=${prefix}/share'