Re: [PATCH] package.bbclass: Fix broken dev package dependency.

["Sreejith Ravi" <sreejith.ravi087@gmail.com>]

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We are building the components through Yocto and using dev IPKs for the dependent packages (generated from Yocto) to resolve the build dependencies.

Steps:
1) Generate the libical IPKs from Yocto.
2) Copy the IPKs to a folder and create the local opkg feed.
3) Remove libical from the BlueZ dependencies list.
4) Install the libical-dev IPK from the local feed to the BlueZ recipe sysroot.
4) Build the BlueZ package.

When we tried to build BlueZ from source, by using the libical dev IPK, we are getting the error.
"
configure:14460: checking for libical
configure:14467: $PKG_CONFIG --exists --print-errors "libical"
Package icu-i18n was not found in the pkg-config search path.
Perhaps you should add the directory containing `icu-i18n.pc'
to the PKG_CONFIG_PATH environment variable
Package 'icu-i18n', required by 'libical', not found
configure:14470: $? = 1
configure:14484: $PKG_CONFIG --exists --print-errors "libical"
Package icu-i18n was not found in the pkg-config search path.
Perhaps you should add the directory containing `icu-i18n.pc'
to the PKG_CONFIG_PATH environment variable
Package 'icu-i18n', required by 'libical', not found
configure:14487: $? = 1
configure:14501: result: no
Package 'icu-i18n', required by 'libical', not found
configure:14517: error: libical is required
"

Similarly, when we are trying to build the 'gstreamer1.0_1.18' package, which has a dependency on 'glib2-0,' and using the glib2-0 dev IPK, it is failing with the error below due to the missing zlib dependency chain.
"
pkg-config error with 'gio-2.0': Could not generate cargs for gio-2.0:
Package zlib was not found in the pkg-config search path.
Perhaps you should add the directory containing `zlib.pc'
to the PKG_CONFIG_PATH environment variable
Package 'zlib', required by 'gio-2.0', not found
"

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