scripts/configure.ac - third_party/opencircuitdesign.com/open_pdks - Git at Google

 AC_INIT([open_pdks], [1.0], [github.com/RTimothyEdwards/open_pdks])

 # AC_PREFIX_DEFAULT(/usr)
 AC_CONFIG_MACRO_DIR(m4)

 ## REQUIRES: https://www.gnu.org/software/autoconf-archive/ax_python_module.html#ax_python_module
 AM_PATH_PYTHON([3.4])
 AX_PYTHON_MODULE([distutils],[])

 # Check for Mac OS X gsed vs. sed
 m4_ifndef([AC_PROG_SED],
     [AC_DEFUN([AC_PROG_SED],[AC_ARG_VAR([SED])
 	AC_CHECK_PROGS([SED],[gsed sed])])])

 AC_PROG_SED
 AC_SUBST(SED)

 realpath() {
     # Cross-platform, handles ~
     python3 -c 'import os,sys;print(os.path.realpath(os.path.expanduser(sys.argv@<:@1@:>@)))' $1
 }

 ENABLED_TECHS=

 # Export the open_pdks top level directory
 OPENPDKS_TOP=`cd .. && pwd`

 # detect PDKs based on directories that include Makefile.in files
 m4_define([M4_GET_TECHS], [m4_normalize(m4_esyscmd(cd .. && find -H * -mindepth 1 -maxdepth 1 -name "Makefile.in" -exec dirname {} \; | tr "\n" " "))])

 # define tools
 # define tools to install setup files for.  This does not imply that the tools are
 # available on the system;  just that open_pdks will install the setup files for them.
 m4_define([M4_GET_TOOLS], [m4_normalize(m4_esyscmd(cat ./tools.txt | tr "\n" " "))])

 # check for the source and install paths for each PDK.
 AC_DEFUN([M4_GEN_WITH_PDK_ARGS], [

     # --enable-pdk-[pdk]=/path/to/pdk
     m4_foreach_w(pdk, $1, [
         echo "Checking technology pdk..."
         m4_define([pdkvar], [m4_normalize(m4_esyscmd(echo pdk | tr "a-z-" "A-Z_"))])

         pdkvar[]_ENABLED_VARIANTS="all"
         pdkvar[]_SOURCE_PATH=""
         pdkvar[]_LINK_TARGETS="none"
         pdkvar[]_AUTO="0"

         AC_ARG_ENABLE(pdk-[pdk],
             [AS_HELP_STRING([--enable-pdk-[pdk]=@<:@/path/to/pdk/@:>@ --disable-pdk-[pdk]], "location of the source files for the pdk (pdks with a [pdk]_url file can automatically download them if the path is omitted)")],
             [
                 if test "$enableval" == "yes" -o "$enableval" == "YES"; then
                     export pdkvar[]_SOURCE_PATH=../sources/pdk-[pdk]
             	    pdkvar[]_AUTO="1"
 		    ENABLED_TECHS="$ENABLED_TECHS pdk"
                 elif test "$enableval" == "no" -o "$enableval" == "NO"; then
                     echo "Disabling pdk..."
                 else
                     pdkvar[]_SOURCE_PATH=$enableval
 		    ENABLED_TECHS="$ENABLED_TECHS pdk"
                 fi
             ], [
             ]
         )

         if @<:@ "$[]pdkvar[]_SOURCE_PATH" != "" @:>@; then
             pdkvar[]_SOURCE_PATH=`realpath $[]pdkvar[]_SOURCE_PATH`
             pdkvar[]_BASENAME=`basename $[]pdkvar[]_SOURCE_PATH`
 	    if @<:@ "$[]pdkvar[]_BASENAME" = "libraries" @:>@; then
 		pdkvar[]_SOURCE_PATH=`dirname $[]pdkvar[]_SOURCE_PATH`
 	    fi
             # Basic check that the PDK path exists, unless depending on Makefile
 	    # to download it automatically.
             if @<:@ "$[]pdkvar[]_AUTO" = "0" @:>@; then
                 AC_MSG_NOTICE([Checking specified path for 'pdk' at $[]pdkvar[]_SOURCE_PATH])
                 AC_CHECK_FILE($pdkvar[]_SOURCE_PATH,[
                     AC_MSG_NOTICE(['pdk' source path found at $pdkvar[]_SOURCE_PATH])
                 ], [
                     AC_MSG_ERROR([Specified path for 'pdk' at $pdkvar[]_SOURCE_PATH not found])
                 ])
 	    else
 		AC_MSG_NOTICE([PDK 'pdk' will be downloaded automatically during make.])
 	    fi

             # --with-pdk-link-targets=PDK_LINK_TARGETS
             AC_ARG_WITH(pdk-link-targets,
                 [AS_HELP_STRING([--with-pdk-link-targets=none|source], "make symbolic links to existing files @<:@default=none@:>@")],
                 [[]pdkvar[]_LINK_TARGETS=$with_[]pdk[]_link_targets]
             )
             AC_SUBST([]pdkvar[]_LINK_TARGETS)
             AC_MSG_NOTICE([Link targets set to $pdkvar[]_LINK_TARGETS])

             # --with-pdk-variants=PDK_ENABLED_VARIANTS
             AC_ARG_WITH(pdk-variants,
                 [AS_HELP_STRING([--with-pdk-variants=all|A|B|...], "compile/install specified PDK variants only @<:@default=all@:>@")],
                 [[]pdkvar[]_ENABLED_VARIANTS=$with_[]pdk[]_variants]
             )
             AC_SUBST([]pdkvar[]_ENABLED_VARIANTS)
             AC_MSG_NOTICE([Enabled variants set to $pdkvar[]_ENABLED_VARIANTS])
         fi

         AC_SUBST(pdkvar[]_SOURCE_PATH)
         AC_SUBST(pdkvar[]_LINK_TARGETS)
         AC_SUBST(pdkvar[]_ENABLED_VARIANTS)
     ])
 ])

 AC_MSG_NOTICE([Found technology directories: M4_GET_TECHS()])

 M4_GEN_WITH_PDK_ARGS(M4_GET_TECHS())

 # Export the list of known technologies to the Makefile
 ALL_TECHS="M4_GET_TECHS()"
 AC_SUBST(ALL_TECHS)

 # Set variables for tool setups
 AC_DEFUN([M4_GEN_WITH_TOOLS], [
     m4_foreach_w(tool, $1, [
         m4_define([toolvar], [m4_normalize(m4_esyscmd(echo tool | tr "a-z-" "A-Z_"))])

         toolvar[]_DISABLED=0
         AC_ARG_ENABLE(tool,
             AS_HELP_STRING(
                 --enable-tool
                 Enable or disable tool setup @<:@default=enabled@:>@
             ), [
                 if test "$enableval" == "no" -o "$enableval" == "NO"; then
                     toolvar[]_DISABLED=1
                 fi
             ]
         )
         AC_SUBST(toolvar[]_DISABLED)
     ])
 ])

 AC_MSG_NOTICE([Found tools: M4_GET_TOOLS()])

 M4_GEN_WITH_TOOLS(M4_GET_TOOLS())

 # Magic
 AC_PATH_PROG(MAGIC, magic)
 if test -z "$MAGIC"; then
    AC_MSG_ERROR([You need 'magic' to generate the needed various cell views.])
 fi
 AC_PATH_PROG(PATCH, patch)
 if test -z "$PATCH"; then
    AC_MSG_ERROR([You need 'patch' to apply patches.])
 fi

 # Other installations (libraries or tools if applicable)
 AC_DEFUN([M4_GEN_INSTALLATION], [
     m4_define([target], $1)
     m4_define([targetvar], [m4_normalize(m4_esyscmd(echo target | tr "a-z-" "A-Z_"))])
     m4_define([flag], $2)
     m4_define([location], $3)

     # echo target targetvar flag location

     targetvar[]_PATH=""

     AC_ARG_ENABLE(
         flag,
         AS_HELP_STRING(
             [--enable-flag@<:@=path@:>@],
             [Install target. If path is omitted, the repository will be downloaded. @<:@default=enabled@:>@]
         ), [
             if test "$enableval" == "yes" -o "$enableval" == "YES"; then
                 AC_MSG_NOTICE([Package 'target' will be installed automatically during make.])
         	export targetvar[]_PATH=location/target
             elif test "$enableval" == "no" -o "$enableval" == "NO"; then
                 AC_MSG_NOTICE([Disabling package 'target'])
     		export targetvar[]_PATH=""
             else
                 targetvar[]_PATH=$enableval
                 AC_MSG_NOTICE([Enabling package 'target' at $[]targetvar[]_PATH])
             fi
             targetvar[]_PATH=`realpath $[]targetvar[]_PATH`
         ],[
             AC_MSG_NOTICE([Package 'target' will be installed automatically during make.])
 	    targetvar[]_PATH=location/target
 	]
     )

     $4

     AC_SUBST(targetvar[]_PATH)
 ])

 # Optional installations (like the above, but disabled by default)
 AC_DEFUN([M4_OPT_INSTALLATION], [
     m4_define([target], $1)
     m4_define([targetvar], [m4_normalize(m4_esyscmd(echo target | tr "a-z-" "A-Z_"))])
     m4_define([flag], $2)
     m4_define([location], $3)

     # echo target targetvar flag location

     targetvar[]_PATH=""

     AC_ARG_ENABLE(
         flag,
         AS_HELP_STRING(
             [--enable-flag@<:@=path@:>@],
             [Install target. If path is omitted, the repository will be downloaded. @<:@default=disabled@:>@]
         ), [
             if test "$enableval" == "yes" -o "$enableval" == "YES"; then
                 AC_MSG_NOTICE([Package 'target' will be installed automatically during make.])
         	export targetvar[]_PATH=location/target
             elif test "$enableval" == "no" -o "$enableval" == "NO"; then
                 AC_MSG_NOTICE([Disabling package 'target'])
     		export targetvar[]_PATH=""
             else
                 targetvar[]_PATH=$enableval
                 AC_MSG_NOTICE([Enabling package 'target' at $[]targetvar[]_PATH])
             fi
             targetvar[]_PATH=`realpath $[]targetvar[]_PATH`
         ],[
             AC_MSG_NOTICE([Package 'target' will not be installed.])
 	]
     )

     $4

     AC_SUBST(targetvar[]_PATH)
 ])

 # NOTE:  This part of the configuration should be based off of the
 # contents of a file with a predetermined name existing in each of
 # the open PDK directories.

 # SkyWater sky130 essential
 M4_GEN_INSTALLATION(sky130_ml_xx_hd, alpha-sky130, ../sources)
 M4_GEN_INSTALLATION(xschem_sky130, xschem-sky130, ../sources)
 M4_GEN_INSTALLATION(klayout_sky130, klayout-sky130, ../sources)
 M4_GEN_INSTALLATION(precheck_sky130, precheck-sky130, ../sources)

 # SkyWater sky130 optional
 M4_OPT_INSTALLATION(sky130_sram_macros, sram-sky130, ../sources)
 M4_OPT_INSTALLATION(sky130_fd_bd_sram, sram-space-sky130, ../sources)
 M4_OPT_INSTALLATION(sky130_osu_t12, osu-t12-sky130, ../sources)
 M4_OPT_INSTALLATION(sky130_osu_t15, osu-t15-sky130, ../sources)
 M4_OPT_INSTALLATION(sky130_osu_t18, osu-t18-sky130, ../sources)

 # GlobalFoundries gf180mcu essential
 M4_GEN_INSTALLATION(gf180mcu_fd_pr, primitive-gf180mcu, ../sources)
 M4_GEN_INSTALLATION(gf180mcu_fd_io, io-gf180mcu, ../sources)
 M4_GEN_INSTALLATION(gf180mcu_fd_sc_mcu7t5v0, sc-7t5v0-gf180mcu, ../sources)
 M4_GEN_INSTALLATION(gf180mcu_fd_sc_mcu9t5v0, sc-9t5v0-gf180mcu, ../sources)
 M4_GEN_INSTALLATION(gf180mcu_fd_ip_sram, sram-gf180mcu, ../sources)

 # GlobalFoundries gf180mcu optional
 M4_GEN_INSTALLATION(gf180mcu_osu_sc, osu-sc-gf180mcu, ../sources)

 AC_DEFUN([M4_GEN_WITH_TOOLS], [
     m4_foreach_w(tool, $1, [
         m4_define([toolvar], [m4_normalize(m4_esyscmd(echo tool | tr "a-z-" "A-Z_"))])

         toolvar[]_DISABLED=0
         AC_ARG_ENABLE(tool,
             AS_HELP_STRING(
                 --enable-tool --disable-tool,
                 Enable or disable tool setup @<:@default=enabled@:>@
             ),
             [
                 if test "$enableval" == "no" -o "$enableval" == "NO"; then
                     toolvar[]_DISABLED=1
                 fi
             ],
         )
         AC_SUBST(toolvar[]_DISABLED)
     ])
 ])

 AC_MSG_NOTICE([Tools enabled for PDK setup installation: M4_GET_TOOLS()])

 # Check for "--with-reference"
 USE_REFERENCE=0
 AC_ARG_WITH(
     [reference],
     AS_HELP_STRING(
         [--with-reference],
         [Use PDK JSON file reference commit values for sources @<:@default=no@:>@]
     ), [
         pdks_reference=$withval
         if test "$withval" == "yes" -o "$withval" == "YES"; then
             USE_REFERENCE=1
 	else
             USE_REFERENCE="$pdks_reference"
         fi
     ],
 )
 AC_SUBST(USE_REFERENCE)

 # Check for "--with-ef-style"
 EF_STYLE=0
 AC_ARG_WITH(
     [ef-style],
     AS_HELP_STRING(
         [--with-ef-style],
         [Use efabless style file system structure @<:@default=no@:>@]
     ), [
         pdks_ef_style=$withval
         if test "$withval" == "yes" -o "$withval" == "YES"; then
             EF_STYLE=1
         fi
     ],
 )
 AC_SUBST(EF_STYLE)

 # Export the list of enabled technologies to the Makefile
 AC_SUBST(ENABLED_TECHS)
 # Export the top level directory of open_pdks
 AC_SUBST(OPENPDKS_TOP)

 MAKEFILES=$(find -L .. -name "Makefile.in" | sed 's/\(.*\)\.in/\1/g')
 AC_CONFIG_FILES($MAKEFILES)

 AC_OUTPUT

 AC_MSG_RESULT(Build configured successfully)
	AC_INIT([open_pdks], [1.0], [github.com/RTimothyEdwards/open_pdks])

	# AC_PREFIX_DEFAULT(/usr)
	AC_CONFIG_MACRO_DIR(m4)

	## REQUIRES: https://www.gnu.org/software/autoconf-archive/ax_python_module.html#ax_python_module
	AM_PATH_PYTHON([3.4])
	AX_PYTHON_MODULE([distutils],[])

	# Check for Mac OS X gsed vs. sed
	m4_ifndef([AC_PROG_SED],
	[AC_DEFUN([AC_PROG_SED],[AC_ARG_VAR([SED])
	AC_CHECK_PROGS([SED],[gsed sed])])])

	AC_PROG_SED
	AC_SUBST(SED)

	realpath() {
	# Cross-platform, handles ~
	python3 -c 'import os,sys;print(os.path.realpath(os.path.expanduser(sys.argv@<:@1@:>@)))' $1
	}

	ENABLED_TECHS=

	# Export the open_pdks top level directory
	OPENPDKS_TOP=`cd .. && pwd`

	# detect PDKs based on directories that include Makefile.in files
	m4_define([M4_GET_TECHS], [m4_normalize(m4_esyscmd(cd .. && find -H * -mindepth 1 -maxdepth 1 -name "Makefile.in" -exec dirname {} \; \| tr "\n" " "))])

	# define tools
	# define tools to install setup files for. This does not imply that the tools are
	# available on the system; just that open_pdks will install the setup files for them.
	m4_define([M4_GET_TOOLS], [m4_normalize(m4_esyscmd(cat ./tools.txt \| tr "\n" " "))])

	# check for the source and install paths for each PDK.
	AC_DEFUN([M4_GEN_WITH_PDK_ARGS], [

	# --enable-pdk-[pdk]=/path/to/pdk
	m4_foreach_w(pdk, $1, [
	echo "Checking technology pdk..."
	m4_define([pdkvar], [m4_normalize(m4_esyscmd(echo pdk \| tr "a-z-" "A-Z_"))])

	pdkvar[]_ENABLED_VARIANTS="all"
	pdkvar[]_SOURCE_PATH=""
	pdkvar[]_LINK_TARGETS="none"
	pdkvar[]_AUTO="0"

	AC_ARG_ENABLE(pdk-[pdk],
	[AS_HELP_STRING([--enable-pdk-[pdk]=@<:@/path/to/pdk/@:>@ --disable-pdk-[pdk]], "location of the source files for the pdk (pdks with a [pdk]_url file can automatically download them if the path is omitted)")],
	[
	if test "$enableval" == "yes" -o "$enableval" == "YES"; then
	export pdkvar[]_SOURCE_PATH=../sources/pdk-[pdk]
	pdkvar[]_AUTO="1"
	ENABLED_TECHS="$ENABLED_TECHS pdk"
	elif test "$enableval" == "no" -o "$enableval" == "NO"; then
	echo "Disabling pdk..."
	else
	pdkvar[]_SOURCE_PATH=$enableval
	ENABLED_TECHS="$ENABLED_TECHS pdk"
	fi
	], [
	]
	)

	if @<:@ "$[]pdkvar[]_SOURCE_PATH" != "" @:>@; then
	pdkvar[]_SOURCE_PATH=`realpath $[]pdkvar[]_SOURCE_PATH`
	pdkvar[]_BASENAME=`basename $[]pdkvar[]_SOURCE_PATH`
	if @<:@ "$[]pdkvar[]_BASENAME" = "libraries" @:>@; then
	pdkvar[]_SOURCE_PATH=`dirname $[]pdkvar[]_SOURCE_PATH`
	fi
	# Basic check that the PDK path exists, unless depending on Makefile
	# to download it automatically.
	if @<:@ "$[]pdkvar[]_AUTO" = "0" @:>@; then
	AC_MSG_NOTICE([Checking specified path for 'pdk' at $[]pdkvar[]_SOURCE_PATH])
	AC_CHECK_FILE($pdkvar[]_SOURCE_PATH,[
	AC_MSG_NOTICE(['pdk' source path found at $pdkvar[]_SOURCE_PATH])
	], [
	AC_MSG_ERROR([Specified path for 'pdk' at $pdkvar[]_SOURCE_PATH not found])
	])
	else
	AC_MSG_NOTICE([PDK 'pdk' will be downloaded automatically during make.])
	fi

	# --with-pdk-link-targets=PDK_LINK_TARGETS
	AC_ARG_WITH(pdk-link-targets,
	[AS_HELP_STRING([--with-pdk-link-targets=none\|source], "make symbolic links to existing files @<:@default=none@:>@")],
	[[]pdkvar[]_LINK_TARGETS=$with_[]pdk[]_link_targets]
	)
	AC_SUBST([]pdkvar[]_LINK_TARGETS)
	AC_MSG_NOTICE([Link targets set to $pdkvar[]_LINK_TARGETS])

	# --with-pdk-variants=PDK_ENABLED_VARIANTS
	AC_ARG_WITH(pdk-variants,
	[AS_HELP_STRING([--with-pdk-variants=all\|A\|B\|...], "compile/install specified PDK variants only @<:@default=all@:>@")],
	[[]pdkvar[]_ENABLED_VARIANTS=$with_[]pdk[]_variants]
	)
	AC_SUBST([]pdkvar[]_ENABLED_VARIANTS)
	AC_MSG_NOTICE([Enabled variants set to $pdkvar[]_ENABLED_VARIANTS])
	fi

	AC_SUBST(pdkvar[]_SOURCE_PATH)
	AC_SUBST(pdkvar[]_LINK_TARGETS)
	AC_SUBST(pdkvar[]_ENABLED_VARIANTS)
	])
	])

	AC_MSG_NOTICE([Found technology directories: M4_GET_TECHS()])

	M4_GEN_WITH_PDK_ARGS(M4_GET_TECHS())

	# Export the list of known technologies to the Makefile
	ALL_TECHS="M4_GET_TECHS()"
	AC_SUBST(ALL_TECHS)

	# Set variables for tool setups
	AC_DEFUN([M4_GEN_WITH_TOOLS], [
	m4_foreach_w(tool, $1, [
	m4_define([toolvar], [m4_normalize(m4_esyscmd(echo tool \| tr "a-z-" "A-Z_"))])

	toolvar[]_DISABLED=0
	AC_ARG_ENABLE(tool,
	AS_HELP_STRING(
	--enable-tool
	Enable or disable tool setup @<:@default=enabled@:>@
	), [
	if test "$enableval" == "no" -o "$enableval" == "NO"; then
	toolvar[]_DISABLED=1
	fi
	]
	)
	AC_SUBST(toolvar[]_DISABLED)
	])
	])

	AC_MSG_NOTICE([Found tools: M4_GET_TOOLS()])

	M4_GEN_WITH_TOOLS(M4_GET_TOOLS())

	# Magic
	AC_PATH_PROG(MAGIC, magic)
	if test -z "$MAGIC"; then
	AC_MSG_ERROR([You need 'magic' to generate the needed various cell views.])
	fi
	AC_PATH_PROG(PATCH, patch)
	if test -z "$PATCH"; then
	AC_MSG_ERROR([You need 'patch' to apply patches.])
	fi

	# Other installations (libraries or tools if applicable)
	AC_DEFUN([M4_GEN_INSTALLATION], [
	m4_define([target], $1)
	m4_define([targetvar], [m4_normalize(m4_esyscmd(echo target \| tr "a-z-" "A-Z_"))])
	m4_define([flag], $2)
	m4_define([location], $3)

	# echo target targetvar flag location

	targetvar[]_PATH=""

	AC_ARG_ENABLE(
	flag,
	AS_HELP_STRING(
	[--enable-flag@<:@=path@:>@],
	[Install target. If path is omitted, the repository will be downloaded. @<:@default=enabled@:>@]
	), [
	if test "$enableval" == "yes" -o "$enableval" == "YES"; then
	AC_MSG_NOTICE([Package 'target' will be installed automatically during make.])
	export targetvar[]_PATH=location/target
	elif test "$enableval" == "no" -o "$enableval" == "NO"; then
	AC_MSG_NOTICE([Disabling package 'target'])
	export targetvar[]_PATH=""
	else
	targetvar[]_PATH=$enableval
	AC_MSG_NOTICE([Enabling package 'target' at $[]targetvar[]_PATH])
	fi
	targetvar[]_PATH=`realpath $[]targetvar[]_PATH`
	],[
	AC_MSG_NOTICE([Package 'target' will be installed automatically during make.])
	targetvar[]_PATH=location/target
	]
	)

	$4

	AC_SUBST(targetvar[]_PATH)
	])

	# Optional installations (like the above, but disabled by default)
	AC_DEFUN([M4_OPT_INSTALLATION], [
	m4_define([target], $1)
	m4_define([targetvar], [m4_normalize(m4_esyscmd(echo target \| tr "a-z-" "A-Z_"))])
	m4_define([flag], $2)
	m4_define([location], $3)

	# echo target targetvar flag location

	targetvar[]_PATH=""

	AC_ARG_ENABLE(
	flag,
	AS_HELP_STRING(
	[--enable-flag@<:@=path@:>@],
	[Install target. If path is omitted, the repository will be downloaded. @<:@default=disabled@:>@]
	), [
	if test "$enableval" == "yes" -o "$enableval" == "YES"; then
	AC_MSG_NOTICE([Package 'target' will be installed automatically during make.])
	export targetvar[]_PATH=location/target
	elif test "$enableval" == "no" -o "$enableval" == "NO"; then
	AC_MSG_NOTICE([Disabling package 'target'])
	export targetvar[]_PATH=""
	else
	targetvar[]_PATH=$enableval
	AC_MSG_NOTICE([Enabling package 'target' at $[]targetvar[]_PATH])
	fi
	targetvar[]_PATH=`realpath $[]targetvar[]_PATH`
	],[
	AC_MSG_NOTICE([Package 'target' will not be installed.])
	]
	)

	$4

	AC_SUBST(targetvar[]_PATH)
	])

	# NOTE: This part of the configuration should be based off of the
	# contents of a file with a predetermined name existing in each of
	# the open PDK directories.

	# SkyWater sky130 essential
	M4_GEN_INSTALLATION(sky130_ml_xx_hd, alpha-sky130, ../sources)
	M4_GEN_INSTALLATION(xschem_sky130, xschem-sky130, ../sources)
	M4_GEN_INSTALLATION(klayout_sky130, klayout-sky130, ../sources)
	M4_GEN_INSTALLATION(precheck_sky130, precheck-sky130, ../sources)

	# SkyWater sky130 optional
	M4_OPT_INSTALLATION(sky130_sram_macros, sram-sky130, ../sources)
	M4_OPT_INSTALLATION(sky130_fd_bd_sram, sram-space-sky130, ../sources)
	M4_OPT_INSTALLATION(sky130_osu_t12, osu-t12-sky130, ../sources)
	M4_OPT_INSTALLATION(sky130_osu_t15, osu-t15-sky130, ../sources)
	M4_OPT_INSTALLATION(sky130_osu_t18, osu-t18-sky130, ../sources)

	# GlobalFoundries gf180mcu essential
	M4_GEN_INSTALLATION(gf180mcu_fd_pr, primitive-gf180mcu, ../sources)
	M4_GEN_INSTALLATION(gf180mcu_fd_io, io-gf180mcu, ../sources)
	M4_GEN_INSTALLATION(gf180mcu_fd_sc_mcu7t5v0, sc-7t5v0-gf180mcu, ../sources)
	M4_GEN_INSTALLATION(gf180mcu_fd_sc_mcu9t5v0, sc-9t5v0-gf180mcu, ../sources)
	M4_GEN_INSTALLATION(gf180mcu_fd_ip_sram, sram-gf180mcu, ../sources)

	# GlobalFoundries gf180mcu optional
	M4_GEN_INSTALLATION(gf180mcu_osu_sc, osu-sc-gf180mcu, ../sources)

	AC_DEFUN([M4_GEN_WITH_TOOLS], [
	m4_foreach_w(tool, $1, [
	m4_define([toolvar], [m4_normalize(m4_esyscmd(echo tool \| tr "a-z-" "A-Z_"))])

	toolvar[]_DISABLED=0
	AC_ARG_ENABLE(tool,
	AS_HELP_STRING(
	--enable-tool --disable-tool,
	Enable or disable tool setup @<:@default=enabled@:>@
	),
	[
	if test "$enableval" == "no" -o "$enableval" == "NO"; then
	toolvar[]_DISABLED=1
	fi
	],
	)
	AC_SUBST(toolvar[]_DISABLED)
	])
	])

	AC_MSG_NOTICE([Tools enabled for PDK setup installation: M4_GET_TOOLS()])

	# Check for "--with-reference"
	USE_REFERENCE=0
	AC_ARG_WITH(
	[reference],
	AS_HELP_STRING(
	[--with-reference],
	[Use PDK JSON file reference commit values for sources @<:@default=no@:>@]
	), [
	pdks_reference=$withval
	if test "$withval" == "yes" -o "$withval" == "YES"; then
	USE_REFERENCE=1
	else
	USE_REFERENCE="$pdks_reference"
	fi
	],
	)
	AC_SUBST(USE_REFERENCE)

	# Check for "--with-ef-style"
	EF_STYLE=0
	AC_ARG_WITH(
	[ef-style],
	AS_HELP_STRING(
	[--with-ef-style],
	[Use efabless style file system structure @<:@default=no@:>@]
	), [
	pdks_ef_style=$withval
	if test "$withval" == "yes" -o "$withval" == "YES"; then
	EF_STYLE=1
	fi
	],
	)
	AC_SUBST(EF_STYLE)

	# Export the list of enabled technologies to the Makefile
	AC_SUBST(ENABLED_TECHS)
	# Export the top level directory of open_pdks
	AC_SUBST(OPENPDKS_TOP)

	MAKEFILES=$(find -L .. -name "Makefile.in" \| sed 's/\(.*\)\.in/\1/g')
	AC_CONFIG_FILES($MAKEFILES)

	AC_OUTPUT

	AC_MSG_RESULT(Build configured successfully)