diff --git a/documentation/dev-manual/dev-manual-common-tasks.xml b/documentation/dev-manual/dev-manual-common-tasks.xml index 9f8fb333dc..7d8b84986c 100644 --- a/documentation/dev-manual/dev-manual-common-tasks.xml +++ b/documentation/dev-manual/dev-manual-common-tasks.xml @@ -726,6 +726,42 @@ types of packages. + + When writing shell functions, you need to be aware of BitBake's + curly brace parsing. + If a recipe uses a closing curly brace within the function and + the character has no leading spaces, BitBake produces a parsing + error. + If you use a pair of curly brace in a shell function, the + closing curly brace must not be located at the start of the line + without leading spaces. + Here is an example that causes BitBake to produce a parsing + error: + + fakeroot create_shar() { + cat << "EOF" > ${SDK_DEPLOY}/${TOOLCHAIN_OUTPUTNAME}.sh + usage() + { + echo "test" + ###### The following "}" at the start of the line causes a parsing error ###### + } + EOF + } + + Writing the recipe this way avoids the error: + + fakeroot create_shar() { + cat << "EOF" > ${SDK_DEPLOY}/${TOOLCHAIN_OUTPUTNAME}.sh + usage() + { + echo "test" + ######The following "}" with a leading space at the start of the line avoids the error ###### + } + EOF + } + + +
Single .c File Package (Hello World!)