sysdetect: fix bug where Makefile sets `-ffree-form` everywhere #478

Job	Run time
papi_clang_analysis	4m 22s
papi_component_amd (rocm, yes)	7m 0s
papi_component_nvidia (cuda, yes)	55s
papi_component (perf_event, yes)	8m 10s
papi_component_nvidia (cuda, no)	45s
papi_component_amd (rocm, no)	5m 36s
papi_spack	10m 54s
papi_component (perf_event, no)	6m 48s
papi_component_nvidia (nvml, yes)	6m 29s
papi_component_amd (rocm_smi, yes)	6m 17s
papi_component (lmsensors, yes)	7m 37s
papi_component_amd (rocm_smi, no)	6m 15s
papi_component_nvidia (nvml, no)	5m 41s
papi_component (lmsensors, no)	7m 17s
papi_component (io, yes)	7m 31s
papi_component (io, no)	7m 0s
papi_component (net, yes)	7m 28s
papi_component (net, no)	6m 52s
papi_component (powercap, yes)	10m 43s
papi_component (powercap, no)	10m 38s
papi_component (appio, yes)	7m 57s
papi_component (appio, no)	7m 17s
papi_component (coretemp, yes)	7m 48s
papi_component (coretemp, no)	6m 47s
papi_component (stealtime, yes)	7m 19s
papi_component (stealtime, no)	7m 1s
	2h 58m 27s

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