Fix ptest issue for gd.

[AkarshHCL]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

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Summary

What does the PR accomplish, why was it needed?

Configured test environment (LD_LIBRARY_PATH, LIBRARY_PATH, TESTS_ENVIRONMENT) to use locally built libraries and marked failing TIFF tests as XFAIL due to known upstream libtiff incompatibility.

Reference to the known issue-libgd/libgd#900

Change Log

• SPECS/gd/gd.spec

Does this affect the toolchain?

NO

Test Methodology

• Screenshot of successful build-

[Kanishk-Bansal]

BUILD

[AkarshHCL]

Buddy Build is successful.

[Kanishk-Bansal]

LIBRARY_PATH is a compile-time linker variable; it is unnecessary at test run time because %check does not invoke the compiler. Recommend dropping the export LIBRARY_PATH=... line

TESTS_ENVIRONMENT="LD_LIBRARY_PATH=..." is partly redundant with the export LD_LIBRARY_PATH=... immediately above. The autotools test harness already inherits the exported environment, so TESTS_ENVIRONMENT adds nothing here unless the test runner explicitly wipes the env.

[AkarshHCL]

Removed the compile-time linker variable .

[kgodara912]

Buddy build

[Kanishk-Bansal]

added an unescaped fix in changelog