Doing in-source builds is generally considered a bad idea.
Instead do
something like:
ADD_SUBDIRECTORY (${prj} ${prj}/build)
Huh? That snippet above has absolutely nothing to do with in-
source vs.
out-of-source builds. He simply accumulates all his subprojects in a
variable instead of listing each with its own add_subdirectory call.
I disagree. From the docs:
add_subdirectory: Add a subdirectory to the build.
Heh, didn't see the second argument :)
I always do out-of-source builds, believe me.
${prj} is a relative path, not an absolute path
in other words, I guess CMake interprets the command as
ADD_DIRECTORY (${CMAKE_CURRENT_SOURCE_DIR}/${prj} $
{CMAKE_CURRENT_BINARY_DIR}/${prj})
using ${prj}/build would be a bad idea, as every subproject would
construct a build directory within the source tree.
all the subprojects are built into a build/ tree which is fully
external from the source tree
Cheers,
Manu
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