thodg/ext4fs/configure.subr

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• Hash : 1b7ff817
  Author : Thomas de Grivel
  Date : 2025-07-05T15:11:33
  

  wip linux build
  

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• configure.subr

• #!/bin/sh
  
  set -e
  
  CONFIGURE_H=configure.h.tmp
  CONFIGURE_MK=configure.mk.tmp
  
  echo "// generated by ./configure" > ${CONFIGURE_H}
  echo "#ifndef CONFIGURE_H" >> ${CONFIGURE_H}
  echo "#define CONFIGURE_H" >> ${CONFIGURE_H}
  
  echo "# generated by ./configure" > ${CONFIGURE_MK}
  
  if [ "x$CC" = "x" ]; then
      if which cc >/dev/null 2>&1; then
          CC=cc
      elif which gcc >/dev/null 2>&1; then
          CC=gcc
      else
          CC=cc
      fi
  fi
  
  echo "CC = ${CC}" >> ${CONFIGURE_MK}
  
  configure_sizeof_long() {
      OUT_C=".configure_sizeof_long.c"
      OUT=".configure_sizeof_long"
      echo "// gen by configure" > ${OUT_C}
      echo "#include <stdio.h>" >> ${OUT_C}
      echo "int main (void) {" >> ${OUT_C}
      echo "  printf(\"%lu\", sizeof(long));" >> ${OUT_C}
      echo "  return 0;" >> ${OUT_C}
      echo "}" >> ${OUT_C}
      ${CC} ${CPPFLAGS} ${CFLAGS} ${OUT_C} -o ${OUT}
      SIZEOF_LONG=$(./${OUT})
      echo "#define CONFIGURE_SIZEOF_LONG ${SIZEOF_LONG}" >> ${CONFIGURE_H}
      if [ "x${SIZEOF_LONG}" = "x4" ]; then
          echo "#define CONFIGURE_FMT_INT64 \"%lld\"" >> ${CONFIGURE_H}
          echo "#define CONFIGURE_FMT_UINT64 \"%llu\"" >> ${CONFIGURE_H}
      elif [ "x${SIZEOF_LONG}" = "x8" ]; then
          echo "#define CONFIGURE_FMT_INT64 \"%ld\"" >> ${CONFIGURE_H}
          echo "#define CONFIGURE_FMT_UINT64 \"%lu\"" >> ${CONFIGURE_H}
      fi
      rm -f ${OUT} ${OUT_C}
  }
  
  update_configure_h() {
      echo "#endif // CONFIGURE_H" >> ${CONFIGURE_H}
      if [ -f configure.h ] && diff configure.h "${CONFIGURE_H}"; then
          rm "${CONFIGURE_H}"
      else
          echo "${PWD}/configure.h"
          mv "${CONFIGURE_H}" configure.h
      fi
  }
  
  update_configure_mk() {
      if [ -f configure.mk ] && diff configure.mk "${CONFIGURE_MK}"; then
          rm "${CONFIGURE_MK}"
      else
          echo "${PWD}/configure.mk"
          mv "${CONFIGURE_MK}" configure.mk
      fi
  }
  

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