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conan install libltc/1.3.1@ --build=libltc --profile=C:\J\w\BuildSingleReference@6/17661/e0deb5fe-ff01-4cfc-b565-9778ff89bf0d/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=Visual Studio
compiler.runtime=MD
compiler.version=15
os=Windows
os_build=Windows
[options]
libltc:shared=False
[build_requires]
[env]

libltc/1.3.1: Forced build from source
Installing package: libltc/1.3.1
Requirements
    libltc/1.3.1 from local cache - Cache
Packages
    libltc/1.3.1:6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7 - Build

Installing (downloading, building) binaries...
libltc/1.3.1: Copying sources to build folder
libltc/1.3.1: Building your package in C:\J\w\BuildSingleReference@6\.conan\data\libltc\1.3.1\_\_\build\6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7
libltc/1.3.1: 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
libltc/1.3.1: Calling build()
libltc/1.3.1: Calling:
 > source_subfolder/configure --disable-shared --enable-static --prefix=C:/J/w/BuildSingleReference@6/.conan/data/libltc/1.3.1/_/_/package/6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7 

----Running------
> source_subfolder/configure --disable-shared --enable-static --prefix=C:/J/w/BuildSingleReference@6/.conan/data/libltc/1.3.1/_/_/package/6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7 
-----------------
libltc/1.3.1: 
libltc/1.3.1: WARN: Build folder is dirty, removing it: C:\J\w\BuildSingleReference@6\.conan\data\libltc\1.3.1\_\_\build\6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7
libltc/1.3.1: WARN: Error running `configure --help`: Error 1 while executing source_subfolder/configure --help
'source_subfolder' is not recognized as an internal or external command,
operable program or batch file.
libltc/1.3.1: ERROR: Package '6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7' build failed
libltc/1.3.1: WARN: Build folder C:\J\w\BuildSingleReference@6\.conan\data\libltc\1.3.1\_\_\build\6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7
ERROR: libltc/1.3.1: Error in build() method, line 56
	autotools = self._configure_autotools()
while calling '_configure_autotools', line 52
	self._autotools.configure(args=args, configure_dir=self._source_subfolder)
	ConanException: Error 1 while executing source_subfolder/configure --disable-shared --enable-static --prefix=C:/J/w/BuildSingleReference@6/.conan/data/libltc/1.3.1/_/_/package/6cc50b139b9c3d27b3e9042d5f5372d327b3a9f7