Installation failed on Centos 7-based cluster

I attempted to install ADflow on a homogeneous HPC supercomputer (all nodes share the same architecture) using Intel Composer 2017. Initially, I encountered the following error: 'for' loop initial declarations are only allowed in C99 mode. I resolved this by adding -std=c99 to the C flags in the Makefile. However, upon rerunning the build, I encountered a new error: (mpicc -fPIC -O -std=c99 -I../c_defines -I../metis-4.0 -I/path/to/petsc/build/include -c ../adjoint/ADFirstAidKit/adStack.c -o adStack.o

    --- Compiled metisInterface.c successfully ---

../adjoint/ADFirstAidKit/adStack.c:65:1: error: unknown type name ‘u_int64_t’
static u_int64_t pushPopTraffic = 0 ;).

I haven't been able to resolve this issue. Could you please provide assistance or any tips to address this? (PS. I installed the CGNS and PETSc from the source using the same compiler)

Moreover, I attempted another way to install it by creating a conda environment having the latest versions of all recommended packages on this website (https://mdolab-mach-aero.readthedocs-hosted.com/en/latest/installInstructions/install3rdPartyPackages.html) using anaconda 2024 but failed and gave the following error:
(../adjoint/outputReverseFast/utils_fast_b.f90
/path/to/adflow/src/build/fort_depend.py:86: SyntaxWarning: invalid escape sequence '\s')

Code versions for the first attempt

• Operating System: Centos 7 Kernal 2.10
• Python: Python 3.6.8
• OpenMPI: impi 2017
• CGNS: 4.4
• PETSc: 3.21.4
• Compiler: Intel Composer 2017

Code versions for the second attempt

• Operating System: Centos 7 Kernal 2.10
• Python: Python 3.12.2
• OpenMPI: 4.1.4
• CGNS: 4.4
• PETSc: 3.21.4
• Compiler:

I really appreciate any help you can provide.

Start by reproducing the installation with the listed CentOS 7, Intel Composer, MPI, PETSc, and CGNS versions. Inspect the Makefile around the C flags, adjoint/ADFirstAidKit/adStack.c, and src/build/fort_depend.py, then compare the two reported environments. Done means identifying a supported configuration or documenting the specific build changes needed for these environments.