[cmake-developers] add_custom_commad build error with ninja generator

[Nils Gladitz]

On 04/10/2014 07:01 AM, Claus Klein wrote:
> Hi all,
>
> I have problems with the following cmake build script:
>
> find_program(CCP_EXECUTABLE cpp REQUIRED HINTS /opt/local/bin)
> find_program(ASN1C_EXECUTABLE asn1c REQUIRED HINTS /opt/local/bin)

find_program() does not understand "REQUIRED" (sadly it does not 
complain either):
	www.cmake.org/cmake/help/git-master/command/find_program.html
>
>
>      ### adding a custom command to produce an output.
>      add_custom_target(OUTPUT ${ASN1_SOURCES}
>          COMMAND ${ASN1C_EXECUTABLE} -S
> ${CMAKE_CURRENT_SOURCE_DIR}/../../skeletons
>              -pdu=all ${ASN1C_OUTPUT_DIR}/_sample.asn1
>          COMMAND astyle *.c *.h
>          DEPENDS ${ASN1C_OUTPUT_DIR}/_sample.asn1
>          WORKING_DIRECTORY ${ASN1C_OUTPUT_DIR}
>          VERBATIM)

add_custom_target() does not have an OUTPUT option, the first parameter 
is the target name:
	www.cmake.org/cmake/help/git-master/command/add_custom_target.html

add_custom_command() does:
	www.cmake.org/cmake/help/git-master/command/add_custom_command.html

You may also want to try the user's mailing list rather than the 
developer's mailing list since your issues aren't related to the 
development of CMake itself.

Nils