README.md

Montage 6.0 Base Image

This base image contains Montage 6.0 toolkit with Node.js 20 LTS.

GCC Compatibility Patches

Montage 6.0 requires patches for compatibility with modern GCC (10+) which changed the default behavior for multiple definitions of global variables.

The following patches are applied during build:

1. Montage/Makefile.LINUX (line 51): Add -fcommon flag to CFLAGS

   • Changes: -std=c99 → -std=c99 -fcommon

2. lib/src/coord/Makefile (line 3): Add -fcommon flag to CFLAGS

These patches allow Montage 6.0 to compile with GCC 10+ by reverting to the pre-GCC-10 behavior where tentative definitions are allowed.

Image Tags

• hyperflowwms/montage-base:6.0-node20 - Full version tag
• hyperflowwms/montage-base:6.0-latest - Latest build for Montage 6.0

Building

make image  # Build locally
make push   # Build and push to Docker Hub